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Finding the Fourth Proportional to 570,781.76, 787,670.88 and 329,064.80

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Solution

The fourth proportional to 570,781.76, 787,670.88 and 329,064.80 is: 454,104.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,781.76 : 787,670.88 = 329,064.80 : x
  2. Step 2: Convert to fraction form
    570,781.76/787,670.88 = 329,064.80/x
  3. Step 3: Cross multiply
    570,781.76x = 787,670.88 × 329,064.80
  4. Step 4: Simplify right side
    570,781.76x = 259,194,760,593.02
  5. Step 5: Solve for x
    x = 259,194,760,593.02/570,781.76
  6. Step 6: Final answer
    x = 454,104.84

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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.