Home / 755,309.66-1,042,340.61-411,155.48

Finding the Fourth Proportional to 755,309.66, 1,042,340.61 and 411,155.48

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Solution

The fourth proportional to 755,309.66, 1,042,340.61 and 411,155.48 is: 567,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,309.66 : 1,042,340.61 = 411,155.48 : x
  2. Step 2: Convert to fraction form
    755,309.66/1,042,340.61 = 411,155.48/x
  3. Step 3: Cross multiply
    755,309.66x = 1,042,340.61 × 411,155.48
  4. Step 4: Simplify right side
    755,309.66x = 428,564,048,616.34
  5. Step 5: Solve for x
    x = 428,564,048,616.34/755,309.66
  6. Step 6: Final answer
    x = 567,401.79

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Double scale
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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.