Home / 1,515,520.71-2,271,312.77-615,915.59

Finding the Fourth Proportional to 1,515,520.71, 2,271,312.77 and 615,915.59

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Solution

The fourth proportional to 1,515,520.71, 2,271,312.77 and 615,915.59 is: 923,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,520.71 : 2,271,312.77 = 615,915.59 : x
  2. Step 2: Convert to fraction form
    1,515,520.71/2,271,312.77 = 615,915.59/x
  3. Step 3: Cross multiply
    1,515,520.71x = 2,271,312.77 × 615,915.59
  4. Step 4: Simplify right side
    1,515,520.71x = 1,398,936,930,372.94
  5. Step 5: Solve for x
    x = 1,398,936,930,372.94/1,515,520.71
  6. Step 6: Final answer
    x = 923,073.45

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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.