Home / 1,419,008.55-2,128,512.83-577,126.95

Finding the Fourth Proportional to 1,419,008.55, 2,128,512.83 and 577,126.95

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Solution

The fourth proportional to 1,419,008.55, 2,128,512.83 and 577,126.95 is: 865,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,008.55 : 2,128,512.83 = 577,126.95 : x
  2. Step 2: Convert to fraction form
    1,419,008.55/2,128,512.83 = 577,126.95/x
  3. Step 3: Cross multiply
    1,419,008.55x = 2,128,512.83 × 577,126.95
  4. Step 4: Simplify right side
    1,419,008.55x = 1,228,422,114,728.13
  5. Step 5: Solve for x
    x = 1,228,422,114,728.13/1,419,008.55
  6. Step 6: Final answer
    x = 865,690.43

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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.