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Finding the Fourth Proportional to 485,935.47, 729,124.71 and 249,444.36

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Solution

The fourth proportional to 485,935.47, 729,124.71 and 249,444.36 is: 374,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,935.47 : 729,124.71 = 249,444.36 : x
  2. Step 2: Convert to fraction form
    485,935.47/729,124.71 = 249,444.36/x
  3. Step 3: Cross multiply
    485,935.47x = 729,124.71 × 249,444.36
  4. Step 4: Simplify right side
    485,935.47x = 181,876,046,646.14
  5. Step 5: Solve for x
    x = 181,876,046,646.14/485,935.47
  6. Step 6: Final answer
    x = 374,280.24

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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.