Home / 691,192.08-953,646.35-449,829.90

Finding the Fourth Proportional to 691,192.08, 953,646.35 and 449,829.90

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Solution

The fourth proportional to 691,192.08, 953,646.35 and 449,829.90 is: 620,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,192.08 : 953,646.35 = 449,829.90 : x
  2. Step 2: Convert to fraction form
    691,192.08/953,646.35 = 449,829.90/x
  3. Step 3: Cross multiply
    691,192.08x = 953,646.35 × 449,829.90
  4. Step 4: Simplify right side
    691,192.08x = 428,978,640,006.72
  5. Step 5: Solve for x
    x = 428,978,640,006.72/691,192.08
  6. Step 6: Final answer
    x = 620,635.93

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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.