Home / 379,787.45-569,713.70-99,304.25

Finding the Fourth Proportional to 379,787.45, 569,713.70 and 99,304.25

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Solution

The fourth proportional to 379,787.45, 569,713.70 and 99,304.25 is: 148,964.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,787.45 : 569,713.70 = 99,304.25 : x
  2. Step 2: Convert to fraction form
    379,787.45/569,713.70 = 99,304.25/x
  3. Step 3: Cross multiply
    379,787.45x = 569,713.70 × 99,304.25
  4. Step 4: Simplify right side
    379,787.45x = 56,574,991,196.70
  5. Step 5: Solve for x
    x = 56,574,991,196.70/379,787.45
  6. Step 6: Final answer
    x = 148,964.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.