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Finding the Fourth Proportional to 662,842.80, 914,332.32 and 469,032.48

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Solution

The fourth proportional to 662,842.80, 914,332.32 and 469,032.48 is: 646,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,842.80 : 914,332.32 = 469,032.48 : x
  2. Step 2: Convert to fraction form
    662,842.80/914,332.32 = 469,032.48/x
  3. Step 3: Cross multiply
    662,842.80x = 914,332.32 × 469,032.48
  4. Step 4: Simplify right side
    662,842.80x = 428,851,555,593.75
  5. Step 5: Solve for x
    x = 428,851,555,593.75/662,842.80
  6. Step 6: Final answer
    x = 646,988.33

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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.