Home / 738,083.10-1,107,124.65-486,140.70

Finding the Fourth Proportional to 738,083.10, 1,107,124.65 and 486,140.70

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Solution

The fourth proportional to 738,083.10, 1,107,124.65 and 486,140.70 is: 729,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,083.10 : 1,107,124.65 = 486,140.70 : x
  2. Step 2: Convert to fraction form
    738,083.10/1,107,124.65 = 486,140.70/x
  3. Step 3: Cross multiply
    738,083.10x = 1,107,124.65 × 486,140.70
  4. Step 4: Simplify right side
    738,083.10x = 538,218,352,338.26
  5. Step 5: Solve for x
    x = 538,218,352,338.26/738,083.10
  6. Step 6: Final answer
    x = 729,211.05

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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.