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Finding the Fourth Proportional to 657,079.85, 906,768.90 and 370,599.05

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Solution

The fourth proportional to 657,079.85, 906,768.90 and 370,599.05 is: 511,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,079.85 : 906,768.90 = 370,599.05 : x
  2. Step 2: Convert to fraction form
    657,079.85/906,768.90 = 370,599.05/x
  3. Step 3: Cross multiply
    657,079.85x = 906,768.90 × 370,599.05
  4. Step 4: Simplify right side
    657,079.85x = 336,047,688,375.70
  5. Step 5: Solve for x
    x = 336,047,688,375.70/657,079.85
  6. Step 6: Final answer
    x = 511,425.96

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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.