Home / 723,008.80-1,084,513.20-349,760.80

Finding the Fourth Proportional to 723,008.80, 1,084,513.20 and 349,760.80

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Solution

The fourth proportional to 723,008.80, 1,084,513.20 and 349,760.80 is: 524,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,008.80 : 1,084,513.20 = 349,760.80 : x
  2. Step 2: Convert to fraction form
    723,008.80/1,084,513.20 = 349,760.80/x
  3. Step 3: Cross multiply
    723,008.80x = 1,084,513.20 × 349,760.80
  4. Step 4: Simplify right side
    723,008.80x = 379,320,204,442.56
  5. Step 5: Solve for x
    x = 379,320,204,442.56/723,008.80
  6. Step 6: Final answer
    x = 524,641.20

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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.