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Finding the Fourth Proportional to 657,050.70, 906,923.88 and 385,177.44

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Solution

The fourth proportional to 657,050.70, 906,923.88 and 385,177.44 is: 531,658.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,050.70 : 906,923.88 = 385,177.44 : x
  2. Step 2: Convert to fraction form
    657,050.70/906,923.88 = 385,177.44/x
  3. Step 3: Cross multiply
    657,050.70x = 906,923.88 × 385,177.44
  4. Step 4: Simplify right side
    657,050.70x = 349,326,618,373.27
  5. Step 5: Solve for x
    x = 349,326,618,373.27/657,050.70
  6. Step 6: Final answer
    x = 531,658.54

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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.