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Finding the Fourth Proportional to 888,385.60, 1,331,703.60 and 439,175.80

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Solution

The fourth proportional to 888,385.60, 1,331,703.60 and 439,175.80 is: 658,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,385.60 : 1,331,703.60 = 439,175.80 : x
  2. Step 2: Convert to fraction form
    888,385.60/1,331,703.60 = 439,175.80/x
  3. Step 3: Cross multiply
    888,385.60x = 1,331,703.60 × 439,175.80
  4. Step 4: Simplify right side
    888,385.60x = 584,851,993,892.88
  5. Step 5: Solve for x
    x = 584,851,993,892.88/888,385.60
  6. Step 6: Final answer
    x = 658,331.24

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1.5x scale

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.