Home / 661,787.52-913,060.80-375,285.12

Finding the Fourth Proportional to 661,787.52, 913,060.80 and 375,285.12

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Solution

The fourth proportional to 661,787.52, 913,060.80 and 375,285.12 is: 517,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,787.52 : 913,060.80 = 375,285.12 : x
  2. Step 2: Convert to fraction form
    661,787.52/913,060.80 = 375,285.12/x
  3. Step 3: Cross multiply
    661,787.52x = 913,060.80 × 375,285.12
  4. Step 4: Simplify right side
    661,787.52x = 342,658,131,895.30
  5. Step 5: Solve for x
    x = 342,658,131,895.30/661,787.52
  6. Step 6: Final answer
    x = 517,776.66

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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.