Home / 822,637.20-1,234,344.60-349,726.80

Finding the Fourth Proportional to 822,637.20, 1,234,344.60 and 349,726.80

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Solution

The fourth proportional to 822,637.20, 1,234,344.60 and 349,726.80 is: 524,755.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,637.20 : 1,234,344.60 = 349,726.80 : x
  2. Step 2: Convert to fraction form
    822,637.20/1,234,344.60 = 349,726.80/x
  3. Step 3: Cross multiply
    822,637.20x = 1,234,344.60 × 349,726.80
  4. Step 4: Simplify right side
    822,637.20x = 431,683,387,055.28
  5. Step 5: Solve for x
    x = 431,683,387,055.28/822,637.20
  6. Step 6: Final answer
    x = 524,755.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.