Home / 712,439.82-983,159.60-385,747.22

Finding the Fourth Proportional to 712,439.82, 983,159.60 and 385,747.22

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Solution

The fourth proportional to 712,439.82, 983,159.60 and 385,747.22 is: 532,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,439.82 : 983,159.60 = 385,747.22 : x
  2. Step 2: Convert to fraction form
    712,439.82/983,159.60 = 385,747.22/x
  3. Step 3: Cross multiply
    712,439.82x = 983,159.60 × 385,747.22
  4. Step 4: Simplify right side
    712,439.82x = 379,251,083,045.48
  5. Step 5: Solve for x
    x = 379,251,083,045.48/712,439.82
  6. Step 6: Final answer
    x = 532,327.18

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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.