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Finding the Fourth Proportional to 536,384.92, 739,882.86 and 318,445.66

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Solution

The fourth proportional to 536,384.92, 739,882.86 and 318,445.66 is: 439,260.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,384.92 : 739,882.86 = 318,445.66 : x
  2. Step 2: Convert to fraction form
    536,384.92/739,882.86 = 318,445.66/x
  3. Step 3: Cross multiply
    536,384.92x = 739,882.86 × 318,445.66
  4. Step 4: Simplify right side
    536,384.92x = 235,612,485,675.39
  5. Step 5: Solve for x
    x = 235,612,485,675.39/536,384.92
  6. Step 6: Final answer
    x = 439,260.09

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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.