Home / 712,439.65-983,159.33-385,747.04

Finding the Fourth Proportional to 712,439.65, 983,159.33 and 385,747.04

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Solution

The fourth proportional to 712,439.65, 983,159.33 and 385,747.04 is: 532,326.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,439.65 : 983,159.33 = 385,747.04 : x
  2. Step 2: Convert to fraction form
    712,439.65/983,159.33 = 385,747.04/x
  3. Step 3: Cross multiply
    712,439.65x = 983,159.33 × 385,747.04
  4. Step 4: Simplify right side
    712,439.65x = 379,250,797,444.45
  5. Step 5: Solve for x
    x = 379,250,797,444.45/712,439.65
  6. Step 6: Final answer
    x = 532,326.91

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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.