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Finding the Fourth Proportional to 636,548.62, 878,445.80 and 364,616.36

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Solution

The fourth proportional to 636,548.62, 878,445.80 and 364,616.36 is: 503,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,548.62 : 878,445.80 = 364,616.36 : x
  2. Step 2: Convert to fraction form
    636,548.62/878,445.80 = 364,616.36/x
  3. Step 3: Cross multiply
    636,548.62x = 878,445.80 × 364,616.36
  4. Step 4: Simplify right side
    636,548.62x = 320,295,710,053.29
  5. Step 5: Solve for x
    x = 320,295,710,053.29/636,548.62
  6. Step 6: Final answer
    x = 503,175.56

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1.5x scale

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.