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Finding the Fourth Proportional to 578,139.85, 797,737.81 and 363,126.76

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Solution

The fourth proportional to 578,139.85, 797,737.81 and 363,126.76 is: 501,055.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,139.85 : 797,737.81 = 363,126.76 : x
  2. Step 2: Convert to fraction form
    578,139.85/797,737.81 = 363,126.76/x
  3. Step 3: Cross multiply
    578,139.85x = 797,737.81 × 363,126.76
  4. Step 4: Simplify right side
    578,139.85x = 289,679,946,274.80
  5. Step 5: Solve for x
    x = 289,679,946,274.80/578,139.85
  6. Step 6: Final answer
    x = 501,055.14

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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.