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Finding the Fourth Proportional to 677,901.60, 935,472.84 and 371,970.36

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Solution

The fourth proportional to 677,901.60, 935,472.84 and 371,970.36 is: 513,301.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,901.60 : 935,472.84 = 371,970.36 : x
  2. Step 2: Convert to fraction form
    677,901.60/935,472.84 = 371,970.36/x
  3. Step 3: Cross multiply
    677,901.60x = 935,472.84 × 371,970.36
  4. Step 4: Simplify right side
    677,901.60x = 347,968,169,065.02
  5. Step 5: Solve for x
    x = 347,968,169,065.02/677,901.60
  6. Step 6: Final answer
    x = 513,301.88

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1.5x scale

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.