Home / 870,917.40-1,306,376.10-738,385.20

Finding the Fourth Proportional to 870,917.40, 1,306,376.10 and 738,385.20

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Solution

The fourth proportional to 870,917.40, 1,306,376.10 and 738,385.20 is: 1,107,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,917.40 : 1,306,376.10 = 738,385.20 : x
  2. Step 2: Convert to fraction form
    870,917.40/1,306,376.10 = 738,385.20/x
  3. Step 3: Cross multiply
    870,917.40x = 1,306,376.10 × 738,385.20
  4. Step 4: Simplify right side
    870,917.40x = 964,608,777,873.72
  5. Step 5: Solve for x
    x = 964,608,777,873.72/870,917.40
  6. Step 6: Final answer
    x = 1,107,577.80

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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.