Home / 712,254.34-982,872.04-389,902.08

Finding the Fourth Proportional to 712,254.34, 982,872.04 and 389,902.08

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Solution

The fourth proportional to 712,254.34, 982,872.04 and 389,902.08 is: 538,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,254.34 : 982,872.04 = 389,902.08 : x
  2. Step 2: Convert to fraction form
    712,254.34/982,872.04 = 389,902.08/x
  3. Step 3: Cross multiply
    712,254.34x = 982,872.04 × 389,902.08
  4. Step 4: Simplify right side
    712,254.34x = 383,223,852,769.84
  5. Step 5: Solve for x
    x = 383,223,852,769.84/712,254.34
  6. Step 6: Final answer
    x = 538,043.55

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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.