Home / 862,189.20-1,292,486.76-440,535.60

Finding the Fourth Proportional to 862,189.20, 1,292,486.76 and 440,535.60

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Solution

The fourth proportional to 862,189.20, 1,292,486.76 and 440,535.60 is: 660,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,189.20 : 1,292,486.76 = 440,535.60 : x
  2. Step 2: Convert to fraction form
    862,189.20/1,292,486.76 = 440,535.60/x
  3. Step 3: Cross multiply
    862,189.20x = 1,292,486.76 × 440,535.60
  4. Step 4: Simplify right side
    862,189.20x = 569,386,430,308.66
  5. Step 5: Solve for x
    x = 569,386,430,308.66/862,189.20
  6. Step 6: Final answer
    x = 660,396.15

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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.