Home / 712,017.90-982,546.67-389,665.64

Finding the Fourth Proportional to 712,017.90, 982,546.67 and 389,665.64

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Solution

The fourth proportional to 712,017.90, 982,546.67 and 389,665.64 is: 537,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,017.90 : 982,546.67 = 389,665.64 : x
  2. Step 2: Convert to fraction form
    712,017.90/982,546.67 = 389,665.64/x
  3. Step 3: Cross multiply
    712,017.90x = 982,546.67 × 389,665.64
  4. Step 4: Simplify right side
    712,017.90x = 382,864,680,425.95
  5. Step 5: Solve for x
    x = 382,864,680,425.95/712,017.90
  6. Step 6: Final answer
    x = 537,717.77

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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.