Home / 738,287.10-1,107,430.65-724,290.30

Finding the Fourth Proportional to 738,287.10, 1,107,430.65 and 724,290.30

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Solution

The fourth proportional to 738,287.10, 1,107,430.65 and 724,290.30 is: 1,086,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,287.10 : 1,107,430.65 = 724,290.30 : x
  2. Step 2: Convert to fraction form
    738,287.10/1,107,430.65 = 724,290.30/x
  3. Step 3: Cross multiply
    738,287.10x = 1,107,430.65 × 724,290.30
  4. Step 4: Simplify right side
    738,287.10x = 802,101,277,717.70
  5. Step 5: Solve for x
    x = 802,101,277,717.70/738,287.10
  6. Step 6: Final answer
    x = 1,086,435.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.