Home / 478,444.03-659,960.79-284,721.79

Finding the Fourth Proportional to 478,444.03, 659,960.79 and 284,721.79

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Solution

The fourth proportional to 478,444.03, 659,960.79 and 284,721.79 is: 392,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,444.03 : 659,960.79 = 284,721.79 : x
  2. Step 2: Convert to fraction form
    478,444.03/659,960.79 = 284,721.79/x
  3. Step 3: Cross multiply
    478,444.03x = 659,960.79 × 284,721.79
  4. Step 4: Simplify right side
    478,444.03x = 187,905,217,458.61
  5. Step 5: Solve for x
    x = 187,905,217,458.61/478,444.03
  6. Step 6: Final answer
    x = 392,742.32

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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.