Home / 1,515,245.40-2,272,812.72-450,259.78

Finding the Fourth Proportional to 1,515,245.40, 2,272,812.72 and 450,259.78

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Solution

The fourth proportional to 1,515,245.40, 2,272,812.72 and 450,259.78 is: 675,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,245.40 : 2,272,812.72 = 450,259.78 : x
  2. Step 2: Convert to fraction form
    1,515,245.40/2,272,812.72 = 450,259.78/x
  3. Step 3: Cross multiply
    1,515,245.40x = 2,272,812.72 × 450,259.78
  4. Step 4: Simplify right side
    1,515,245.40x = 1,023,356,155,288.40
  5. Step 5: Solve for x
    x = 1,023,356,155,288.40/1,515,245.40
  6. Step 6: Final answer
    x = 675,373.21

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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.