Home / 1,449,287.40-2,173,931.10-915,076.20

Finding the Fourth Proportional to 1,449,287.40, 2,173,931.10 and 915,076.20

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Solution

The fourth proportional to 1,449,287.40, 2,173,931.10 and 915,076.20 is: 1,372,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,287.40 : 2,173,931.10 = 915,076.20 : x
  2. Step 2: Convert to fraction form
    1,449,287.40/2,173,931.10 = 915,076.20/x
  3. Step 3: Cross multiply
    1,449,287.40x = 2,173,931.10 × 915,076.20
  4. Step 4: Simplify right side
    1,449,287.40x = 1,989,312,610,049.82
  5. Step 5: Solve for x
    x = 1,989,312,610,049.82/1,449,287.40
  6. Step 6: Final answer
    x = 1,372,614.30

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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.