Home / 755,294.40-1,042,220.76-445,176.72

Finding the Fourth Proportional to 755,294.40, 1,042,220.76 and 445,176.72

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Solution

The fourth proportional to 755,294.40, 1,042,220.76 and 445,176.72 is: 614,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,294.40 : 1,042,220.76 = 445,176.72 : x
  2. Step 2: Convert to fraction form
    755,294.40/1,042,220.76 = 445,176.72/x
  3. Step 3: Cross multiply
    755,294.40x = 1,042,220.76 × 445,176.72
  4. Step 4: Simplify right side
    755,294.40x = 463,972,419,452.71
  5. Step 5: Solve for x
    x = 463,972,419,452.71/755,294.40
  6. Step 6: Final answer
    x = 614,293.47

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Half scale
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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.