Home / 1,101,089.40-1,651,634.10-724,390.80

Finding the Fourth Proportional to 1,101,089.40, 1,651,634.10 and 724,390.80

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Solution

The fourth proportional to 1,101,089.40, 1,651,634.10 and 724,390.80 is: 1,086,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,089.40 : 1,651,634.10 = 724,390.80 : x
  2. Step 2: Convert to fraction form
    1,101,089.40/1,651,634.10 = 724,390.80/x
  3. Step 3: Cross multiply
    1,101,089.40x = 1,651,634.10 × 724,390.80
  4. Step 4: Simplify right side
    1,101,089.40x = 1,196,428,547,006.28
  5. Step 5: Solve for x
    x = 1,196,428,547,006.28/1,101,089.40
  6. Step 6: Final answer
    x = 1,086,586.20

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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.