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Finding the Fourth Proportional to 522,606.30, 782,743.05 and 403,892.70

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Solution

The fourth proportional to 522,606.30, 782,743.05 and 403,892.70 is: 604,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,606.30 : 782,743.05 = 403,892.70 : x
  2. Step 2: Convert to fraction form
    522,606.30/782,743.05 = 403,892.70/x
  3. Step 3: Cross multiply
    522,606.30x = 782,743.05 × 403,892.70
  4. Step 4: Simplify right side
    522,606.30x = 316,144,203,870.74
  5. Step 5: Solve for x
    x = 316,144,203,870.74/522,606.30
  6. Step 6: Final answer
    x = 604,937.61

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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.