Home / 1,138,825.61-1,571,504.45-655,312.71

Finding the Fourth Proportional to 1,138,825.61, 1,571,504.45 and 655,312.71

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Solution

The fourth proportional to 1,138,825.61, 1,571,504.45 and 655,312.71 is: 904,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,825.61 : 1,571,504.45 = 655,312.71 : x
  2. Step 2: Convert to fraction form
    1,138,825.61/1,571,504.45 = 655,312.71/x
  3. Step 3: Cross multiply
    1,138,825.61x = 1,571,504.45 × 655,312.71
  4. Step 4: Simplify right side
    1,138,825.61x = 1,029,826,836,630.00
  5. Step 5: Solve for x
    x = 1,029,826,836,630.00/1,138,825.61
  6. Step 6: Final answer
    x = 904,288.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.