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Finding the Fourth Proportional to 577,673.90, 865,344.45 and 328,064.30

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Solution

The fourth proportional to 577,673.90, 865,344.45 and 328,064.30 is: 491,434.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,673.90 : 865,344.45 = 328,064.30 : x
  2. Step 2: Convert to fraction form
    577,673.90/865,344.45 = 328,064.30/x
  3. Step 3: Cross multiply
    577,673.90x = 865,344.45 × 328,064.30
  4. Step 4: Simplify right side
    577,673.90x = 283,888,621,248.14
  5. Step 5: Solve for x
    x = 283,888,621,248.14/577,673.90
  6. Step 6: Final answer
    x = 491,434.04

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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.