Home / 840,124.80-1,259,859.60-366,487.20

Finding the Fourth Proportional to 840,124.80, 1,259,859.60 and 366,487.20

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Solution

The fourth proportional to 840,124.80, 1,259,859.60 and 366,487.20 is: 549,587.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,124.80 : 1,259,859.60 = 366,487.20 : x
  2. Step 2: Convert to fraction form
    840,124.80/1,259,859.60 = 366,487.20/x
  3. Step 3: Cross multiply
    840,124.80x = 1,259,859.60 × 366,487.20
  4. Step 4: Simplify right side
    840,124.80x = 461,722,417,197.12
  5. Step 5: Solve for x
    x = 461,722,417,197.12/840,124.80
  6. Step 6: Final answer
    x = 549,587.89

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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.