Home / 870,897.76-1,306,429.28-338,459.92

Finding the Fourth Proportional to 870,897.76, 1,306,429.28 and 338,459.92

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Solution

The fourth proportional to 870,897.76, 1,306,429.28 and 338,459.92 is: 507,722.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,897.76 : 1,306,429.28 = 338,459.92 : x
  2. Step 2: Convert to fraction form
    870,897.76/1,306,429.28 = 338,459.92/x
  3. Step 3: Cross multiply
    870,897.76x = 1,306,429.28 × 338,459.92
  4. Step 4: Simplify right side
    870,897.76x = 442,173,949,594.46
  5. Step 5: Solve for x
    x = 442,173,949,594.46/870,897.76
  6. Step 6: Final answer
    x = 507,722.00

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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.