Home / 718,444.56-991,520.04-412,561.02

Finding the Fourth Proportional to 718,444.56, 991,520.04 and 412,561.02

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Solution

The fourth proportional to 718,444.56, 991,520.04 and 412,561.02 is: 569,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,444.56 : 991,520.04 = 412,561.02 : x
  2. Step 2: Convert to fraction form
    718,444.56/991,520.04 = 412,561.02/x
  3. Step 3: Cross multiply
    718,444.56x = 991,520.04 × 412,561.02
  4. Step 4: Simplify right side
    718,444.56x = 409,062,519,052.84
  5. Step 5: Solve for x
    x = 409,062,519,052.84/718,444.56
  6. Step 6: Final answer
    x = 569,372.42

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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.