Home / 915,165.12-1,372,279.36-382,540.80

Finding the Fourth Proportional to 915,165.12, 1,372,279.36 and 382,540.80

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Solution

The fourth proportional to 915,165.12, 1,372,279.36 and 382,540.80 is: 573,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,165.12 : 1,372,279.36 = 382,540.80 : x
  2. Step 2: Convert to fraction form
    915,165.12/1,372,279.36 = 382,540.80/x
  3. Step 3: Cross multiply
    915,165.12x = 1,372,279.36 × 382,540.80
  4. Step 4: Simplify right side
    915,165.12x = 524,952,844,197.89
  5. Step 5: Solve for x
    x = 524,952,844,197.89/915,165.12
  6. Step 6: Final answer
    x = 573,615.44

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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.