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Finding the Fourth Proportional to 657,130.94, 906,883.01 and 370,644.87

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Solution

The fourth proportional to 657,130.94, 906,883.01 and 370,644.87 is: 511,513.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,130.94 : 906,883.01 = 370,644.87 : x
  2. Step 2: Convert to fraction form
    657,130.94/906,883.01 = 370,644.87/x
  3. Step 3: Cross multiply
    657,130.94x = 906,883.01 × 370,644.87
  4. Step 4: Simplify right side
    657,130.94x = 336,131,536,273.27
  5. Step 5: Solve for x
    x = 336,131,536,273.27/657,130.94
  6. Step 6: Final answer
    x = 511,513.79

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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.