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Finding the Fourth Proportional to 451,572.33, 677,936.53 and 387,937.59

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Solution

The fourth proportional to 451,572.33, 677,936.53 and 387,937.59 is: 582,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,572.33 : 677,936.53 = 387,937.59 : x
  2. Step 2: Convert to fraction form
    451,572.33/677,936.53 = 387,937.59/x
  3. Step 3: Cross multiply
    451,572.33x = 677,936.53 × 387,937.59
  4. Step 4: Simplify right side
    451,572.33x = 262,997,061,681.48
  5. Step 5: Solve for x
    x = 262,997,061,681.48/451,572.33
  6. Step 6: Final answer
    x = 582,402.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.