Home / 738,272.10-1,107,408.15-724,275.30

Finding the Fourth Proportional to 738,272.10, 1,107,408.15 and 724,275.30

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Solution

The fourth proportional to 738,272.10, 1,107,408.15 and 724,275.30 is: 1,086,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,272.10 : 1,107,408.15 = 724,275.30 : x
  2. Step 2: Convert to fraction form
    738,272.10/1,107,408.15 = 724,275.30/x
  3. Step 3: Cross multiply
    738,272.10x = 1,107,408.15 × 724,275.30
  4. Step 4: Simplify right side
    738,272.10x = 802,068,370,063.70
  5. Step 5: Solve for x
    x = 802,068,370,063.70/738,272.10
  6. Step 6: Final answer
    x = 1,086,412.95

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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.