Home / 870,959.52-1,306,312.56-271,781.28

Finding the Fourth Proportional to 870,959.52, 1,306,312.56 and 271,781.28

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Solution

The fourth proportional to 870,959.52, 1,306,312.56 and 271,781.28 is: 407,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,959.52 : 1,306,312.56 = 271,781.28 : x
  2. Step 2: Convert to fraction form
    870,959.52/1,306,312.56 = 271,781.28/x
  3. Step 3: Cross multiply
    870,959.52x = 1,306,312.56 × 271,781.28
  4. Step 4: Simplify right side
    870,959.52x = 355,031,299,636.88
  5. Step 5: Solve for x
    x = 355,031,299,636.88/870,959.52
  6. Step 6: Final answer
    x = 407,632.38

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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.