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Finding the Fourth Proportional to 636,433.66, 878,027.94 and 364,354.90

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Solution

The fourth proportional to 636,433.66, 878,027.94 and 364,354.90 is: 502,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,433.66 : 878,027.94 = 364,354.90 : x
  2. Step 2: Convert to fraction form
    636,433.66/878,027.94 = 364,354.90/x
  3. Step 3: Cross multiply
    636,433.66x = 878,027.94 × 364,354.90
  4. Step 4: Simplify right side
    636,433.66x = 319,913,782,275.91
  5. Step 5: Solve for x
    x = 319,913,782,275.91/636,433.66
  6. Step 6: Final answer
    x = 502,666.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.