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Finding the Fourth Proportional to 723,335.72, 998,461.62 and 493,728.66

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Solution

The fourth proportional to 723,335.72, 998,461.62 and 493,728.66 is: 681,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,335.72 : 998,461.62 = 493,728.66 : x
  2. Step 2: Convert to fraction form
    723,335.72/998,461.62 = 493,728.66/x
  3. Step 3: Cross multiply
    723,335.72x = 998,461.62 × 493,728.66
  4. Step 4: Simplify right side
    723,335.72x = 492,969,117,704.03
  5. Step 5: Solve for x
    x = 492,969,117,704.03/723,335.72
  6. Step 6: Final answer
    x = 681,521.88

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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.