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Finding the Fourth Proportional to 485,591.49, 670,165.25 and 281,704.77

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Solution

The fourth proportional to 485,591.49, 670,165.25 and 281,704.77 is: 388,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,591.49 : 670,165.25 = 281,704.77 : x
  2. Step 2: Convert to fraction form
    485,591.49/670,165.25 = 281,704.77/x
  3. Step 3: Cross multiply
    485,591.49x = 670,165.25 × 281,704.77
  4. Step 4: Simplify right side
    485,591.49x = 188,788,746,204.72
  5. Step 5: Solve for x
    x = 188,788,746,204.72/485,591.49
  6. Step 6: Final answer
    x = 388,781.00

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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.