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Finding the Fourth Proportional to 677,970.62, 935,610.94 and 372,075.46

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Solution

The fourth proportional to 677,970.62, 935,610.94 and 372,075.46 is: 513,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,970.62 : 935,610.94 = 372,075.46 : x
  2. Step 2: Convert to fraction form
    677,970.62/935,610.94 = 372,075.46/x
  3. Step 3: Cross multiply
    677,970.62x = 935,610.94 × 372,075.46
  4. Step 4: Simplify right side
    677,970.62x = 348,117,867,705.24
  5. Step 5: Solve for x
    x = 348,117,867,705.24/677,970.62
  6. Step 6: Final answer
    x = 513,470.44

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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.