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Finding the Fourth Proportional to 580,663.22, 870,011.71 and 355,553.48

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Solution

The fourth proportional to 580,663.22, 870,011.71 and 355,553.48 is: 532,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,663.22 : 870,011.71 = 355,553.48 : x
  2. Step 2: Convert to fraction form
    580,663.22/870,011.71 = 355,553.48/x
  3. Step 3: Cross multiply
    580,663.22x = 870,011.71 × 355,553.48
  4. Step 4: Simplify right side
    580,663.22x = 309,335,692,417.40
  5. Step 5: Solve for x
    x = 309,335,692,417.40/580,663.22
  6. Step 6: Final answer
    x = 532,728.24

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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.