Home / 1,486,728.40-2,230,092.60-421,805.20

Finding the Fourth Proportional to 1,486,728.40, 2,230,092.60 and 421,805.20

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Solution

The fourth proportional to 1,486,728.40, 2,230,092.60 and 421,805.20 is: 632,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,728.40 : 2,230,092.60 = 421,805.20 : x
  2. Step 2: Convert to fraction form
    1,486,728.40/2,230,092.60 = 421,805.20/x
  3. Step 3: Cross multiply
    1,486,728.40x = 2,230,092.60 × 421,805.20
  4. Step 4: Simplify right side
    1,486,728.40x = 940,664,655,161.52
  5. Step 5: Solve for x
    x = 940,664,655,161.52/1,486,728.40
  6. Step 6: Final answer
    x = 632,707.80

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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.