Home / 870,926.10-1,306,471.32-338,487.90

Finding the Fourth Proportional to 870,926.10, 1,306,471.32 and 338,487.90

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Solution

The fourth proportional to 870,926.10, 1,306,471.32 and 338,487.90 is: 507,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,926.10 : 1,306,471.32 = 338,487.90 : x
  2. Step 2: Convert to fraction form
    870,926.10/1,306,471.32 = 338,487.90/x
  3. Step 3: Cross multiply
    870,926.10x = 1,306,471.32 × 338,487.90
  4. Step 4: Simplify right side
    870,926.10x = 442,224,733,517.03
  5. Step 5: Solve for x
    x = 442,224,733,517.03/870,926.10
  6. Step 6: Final answer
    x = 507,763.79

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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.