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Finding the Fourth Proportional to 657,299.88, 907,058.52 and 370,812.60

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Solution

The fourth proportional to 657,299.88, 907,058.52 and 370,812.60 is: 511,712.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,299.88 : 907,058.52 = 370,812.60 : x
  2. Step 2: Convert to fraction form
    657,299.88/907,058.52 = 370,812.60/x
  3. Step 3: Cross multiply
    657,299.88x = 907,058.52 × 370,812.60
  4. Step 4: Simplify right side
    657,299.88x = 336,348,728,153.35
  5. Step 5: Solve for x
    x = 336,348,728,153.35/657,299.88
  6. Step 6: Final answer
    x = 511,712.75

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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.