Home / 769,821.74-1,062,335.10-425,648.60

Finding the Fourth Proportional to 769,821.74, 1,062,335.10 and 425,648.60

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Solution

The fourth proportional to 769,821.74, 1,062,335.10 and 425,648.60 is: 587,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,821.74 : 1,062,335.10 = 425,648.60 : x
  2. Step 2: Convert to fraction form
    769,821.74/1,062,335.10 = 425,648.60/x
  3. Step 3: Cross multiply
    769,821.74x = 1,062,335.10 × 425,648.60
  4. Step 4: Simplify right side
    769,821.74x = 452,181,448,045.86
  5. Step 5: Solve for x
    x = 452,181,448,045.86/769,821.74
  6. Step 6: Final answer
    x = 587,384.62

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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.