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Finding the Fourth Proportional to 618,276.56, 924,688.92 and 538,226.96

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Solution

The fourth proportional to 618,276.56, 924,688.92 and 538,226.96 is: 804,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,276.56 : 924,688.92 = 538,226.96 : x
  2. Step 2: Convert to fraction form
    618,276.56/924,688.92 = 538,226.96/x
  3. Step 3: Cross multiply
    618,276.56x = 924,688.92 × 538,226.96
  4. Step 4: Simplify right side
    618,276.56x = 497,692,506,357.28
  5. Step 5: Solve for x
    x = 497,692,506,357.28/618,276.56
  6. Step 6: Final answer
    x = 804,967.45

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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.