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Finding the Fourth Proportional to 558,719, 770,897.76 and 329,285.42

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Solution

The fourth proportional to 558,719, 770,897.76 and 329,285.42 is: 454,334.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,719 : 770,897.76 = 329,285.42 : x
  2. Step 2: Convert to fraction form
    558,719/770,897.76 = 329,285.42/x
  3. Step 3: Cross multiply
    558,719x = 770,897.76 × 329,285.42
  4. Step 4: Simplify right side
    558,719x = 253,845,392,678.66
  5. Step 5: Solve for x
    x = 253,845,392,678.66/558,719
  6. Step 6: Final answer
    x = 454,334.63

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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.