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Finding the Fourth Proportional to 636,553.58, 878,452.62 and 364,621.28

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Solution

The fourth proportional to 636,553.58, 878,452.62 and 364,621.28 is: 503,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,553.58 : 878,452.62 = 364,621.28 : x
  2. Step 2: Convert to fraction form
    636,553.58/878,452.62 = 364,621.28/x
  3. Step 3: Cross multiply
    636,553.58x = 878,452.62 × 364,621.28
  4. Step 4: Simplify right side
    636,553.58x = 320,302,518,723.75
  5. Step 5: Solve for x
    x = 320,302,518,723.75/636,553.58
  6. Step 6: Final answer
    x = 503,182.34

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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.