Home / 832,042.80-1,148,090.76-469,438.20

Finding the Fourth Proportional to 832,042.80, 1,148,090.76 and 469,438.20

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Solution

The fourth proportional to 832,042.80, 1,148,090.76 and 469,438.20 is: 647,752.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,042.80 : 1,148,090.76 = 469,438.20 : x
  2. Step 2: Convert to fraction form
    832,042.80/1,148,090.76 = 469,438.20/x
  3. Step 3: Cross multiply
    832,042.80x = 1,148,090.76 × 469,438.20
  4. Step 4: Simplify right side
    832,042.80x = 538,957,659,811.03
  5. Step 5: Solve for x
    x = 538,957,659,811.03/832,042.80
  6. Step 6: Final answer
    x = 647,752.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.