Home / 765,416.88-1,148,384.82-338,893.97

Finding the Fourth Proportional to 765,416.88, 1,148,384.82 and 338,893.97

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Solution

The fourth proportional to 765,416.88, 1,148,384.82 and 338,893.97 is: 508,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,416.88 : 1,148,384.82 = 338,893.97 : x
  2. Step 2: Convert to fraction form
    765,416.88/1,148,384.82 = 338,893.97/x
  3. Step 3: Cross multiply
    765,416.88x = 1,148,384.82 × 338,893.97
  4. Step 4: Simplify right side
    765,416.88x = 389,180,684,995.61
  5. Step 5: Solve for x
    x = 389,180,684,995.61/765,416.88
  6. Step 6: Final answer
    x = 508,455.84

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Why These Related Problems?

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