Home / 886,937.20-1,330,405.80-389,273.20

Finding the Fourth Proportional to 886,937.20, 1,330,405.80 and 389,273.20

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Solution

The fourth proportional to 886,937.20, 1,330,405.80 and 389,273.20 is: 583,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,937.20 : 1,330,405.80 = 389,273.20 : x
  2. Step 2: Convert to fraction form
    886,937.20/1,330,405.80 = 389,273.20/x
  3. Step 3: Cross multiply
    886,937.20x = 1,330,405.80 × 389,273.20
  4. Step 4: Simplify right side
    886,937.20x = 517,891,323,064.56
  5. Step 5: Solve for x
    x = 517,891,323,064.56/886,937.20
  6. Step 6: Final answer
    x = 583,909.80

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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.