Home / 738,370.10-1,107,555.15-402,446.90

Finding the Fourth Proportional to 738,370.10, 1,107,555.15 and 402,446.90

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Solution

The fourth proportional to 738,370.10, 1,107,555.15 and 402,446.90 is: 603,670.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,370.10 : 1,107,555.15 = 402,446.90 : x
  2. Step 2: Convert to fraction form
    738,370.10/1,107,555.15 = 402,446.90/x
  3. Step 3: Cross multiply
    738,370.10x = 1,107,555.15 × 402,446.90
  4. Step 4: Simplify right side
    738,370.10x = 445,732,136,696.54
  5. Step 5: Solve for x
    x = 445,732,136,696.54/738,370.10
  6. Step 6: Final answer
    x = 603,670.35

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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.