Home / 460,031.40-690,306.30-179,512.20

Finding the Fourth Proportional to 460,031.40, 690,306.30 and 179,512.20

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Solution

The fourth proportional to 460,031.40, 690,306.30 and 179,512.20 is: 269,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,031.40 : 690,306.30 = 179,512.20 : x
  2. Step 2: Convert to fraction form
    460,031.40/690,306.30 = 179,512.20/x
  3. Step 3: Cross multiply
    460,031.40x = 690,306.30 × 179,512.20
  4. Step 4: Simplify right side
    460,031.40x = 123,918,402,586.86
  5. Step 5: Solve for x
    x = 123,918,402,586.86/460,031.40
  6. Step 6: Final answer
    x = 269,369.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.