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Finding the Fourth Proportional to 485,857.83, 728,787.98 and 249,071.34

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Solution

The fourth proportional to 485,857.83, 728,787.98 and 249,071.34 is: 373,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,857.83 : 728,787.98 = 249,071.34 : x
  2. Step 2: Convert to fraction form
    485,857.83/728,787.98 = 249,071.34/x
  3. Step 3: Cross multiply
    485,857.83x = 728,787.98 × 249,071.34
  4. Step 4: Simplify right side
    485,857.83x = 181,520,198,754.49
  5. Step 5: Solve for x
    x = 181,520,198,754.49/485,857.83
  6. Step 6: Final answer
    x = 373,607.64

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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.