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Finding the Fourth Proportional to 577,390, 797,148.12 and 376,535.92

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Solution

The fourth proportional to 577,390, 797,148.12 and 376,535.92 is: 519,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,390 : 797,148.12 = 376,535.92 : x
  2. Step 2: Convert to fraction form
    577,390/797,148.12 = 376,535.92/x
  3. Step 3: Cross multiply
    577,390x = 797,148.12 × 376,535.92
  4. Step 4: Simplify right side
    577,390x = 300,154,900,740.47
  5. Step 5: Solve for x
    x = 300,154,900,740.47/577,390
  6. Step 6: Final answer
    x = 519,847.76

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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.