Home / 711,787.92-982,267.29-389,498.04

Finding the Fourth Proportional to 711,787.92, 982,267.29 and 389,498.04

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Solution

The fourth proportional to 711,787.92, 982,267.29 and 389,498.04 is: 537,507.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,787.92 : 982,267.29 = 389,498.04 : x
  2. Step 2: Convert to fraction form
    711,787.92/982,267.29 = 389,498.04/x
  3. Step 3: Cross multiply
    711,787.92x = 982,267.29 × 389,498.04
  4. Step 4: Simplify right side
    711,787.92x = 382,591,184,211.11
  5. Step 5: Solve for x
    x = 382,591,184,211.11/711,787.92
  6. Step 6: Final answer
    x = 537,507.27

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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.