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Finding the Fourth Proportional to 657,469.65, 985,524.08 and 357,316.05

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Solution

The fourth proportional to 657,469.65, 985,524.08 and 357,316.05 is: 535,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,469.65 : 985,524.08 = 357,316.05 : x
  2. Step 2: Convert to fraction form
    657,469.65/985,524.08 = 357,316.05/x
  3. Step 3: Cross multiply
    657,469.65x = 985,524.08 × 357,316.05
  4. Step 4: Simplify right side
    657,469.65x = 352,143,569,658.90
  5. Step 5: Solve for x
    x = 352,143,569,658.90/657,469.65
  6. Step 6: Final answer
    x = 535,604.30

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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.