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Finding the Fourth Proportional to 657,040.52, 906,661.58 and 370,631

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Solution

The fourth proportional to 657,040.52, 906,661.58 and 370,631 is: 511,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,040.52 : 906,661.58 = 370,631 : x
  2. Step 2: Convert to fraction form
    657,040.52/906,661.58 = 370,631/x
  3. Step 3: Cross multiply
    657,040.52x = 906,661.58 × 370,631
  4. Step 4: Simplify right side
    657,040.52x = 336,036,888,056.98
  5. Step 5: Solve for x
    x = 336,036,888,056.98/657,040.52
  6. Step 6: Final answer
    x = 511,440.13

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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.