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Finding the Fourth Proportional to 522,505.08, 720,380.25 and 338,416.11

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Solution

The fourth proportional to 522,505.08, 720,380.25 and 338,416.11 is: 466,575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,505.08 : 720,380.25 = 338,416.11 : x
  2. Step 2: Convert to fraction form
    522,505.08/720,380.25 = 338,416.11/x
  3. Step 3: Cross multiply
    522,505.08x = 720,380.25 × 338,416.11
  4. Step 4: Simplify right side
    522,505.08x = 243,788,281,925.83
  5. Step 5: Solve for x
    x = 243,788,281,925.83/522,505.08
  6. Step 6: Final answer
    x = 466,575.91

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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.