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Finding the Fourth Proportional to 584,961.40, 876,129.90 and 479,985.40

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Solution

The fourth proportional to 584,961.40, 876,129.90 and 479,985.40 is: 718,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,961.40 : 876,129.90 = 479,985.40 : x
  2. Step 2: Convert to fraction form
    584,961.40/876,129.90 = 479,985.40/x
  3. Step 3: Cross multiply
    584,961.40x = 876,129.90 × 479,985.40
  4. Step 4: Simplify right side
    584,961.40x = 420,529,560,503.46
  5. Step 5: Solve for x
    x = 420,529,560,503.46/584,961.40
  6. Step 6: Final answer
    x = 718,901.38

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