Home / 870,996.91-1,306,494.76-272,009.40

Finding the Fourth Proportional to 870,996.91, 1,306,494.76 and 272,009.40

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Solution

The fourth proportional to 870,996.91, 1,306,494.76 and 272,009.40 is: 408,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,996.91 : 1,306,494.76 = 272,009.40 : x
  2. Step 2: Convert to fraction form
    870,996.91/1,306,494.76 = 272,009.40/x
  3. Step 3: Cross multiply
    870,996.91x = 1,306,494.76 × 272,009.40
  4. Step 4: Simplify right side
    870,996.91x = 355,378,854,410.70
  5. Step 5: Solve for x
    x = 355,378,854,410.70/870,996.91
  6. Step 6: Final answer
    x = 408,013.91

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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.