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Finding the Fourth Proportional to 677,970.88, 935,597.16 and 372,052.36

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Solution

The fourth proportional to 677,970.88, 935,597.16 and 372,052.36 is: 513,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,970.88 : 935,597.16 = 372,052.36 : x
  2. Step 2: Convert to fraction form
    677,970.88/935,597.16 = 372,052.36/x
  3. Step 3: Cross multiply
    677,970.88x = 935,597.16 × 372,052.36
  4. Step 4: Simplify right side
    677,970.88x = 348,091,131,387.30
  5. Step 5: Solve for x
    x = 348,091,131,387.30/677,970.88
  6. Step 6: Final answer
    x = 513,430.80

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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.