Home / 460,938.20-690,780.35-271,485.68

Finding the Fourth Proportional to 460,938.20, 690,780.35 and 271,485.68

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Solution

The fourth proportional to 460,938.20, 690,780.35 and 271,485.68 is: 406,859.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,938.20 : 690,780.35 = 271,485.68 : x
  2. Step 2: Convert to fraction form
    460,938.20/690,780.35 = 271,485.68/x
  3. Step 3: Cross multiply
    460,938.20x = 690,780.35 × 271,485.68
  4. Step 4: Simplify right side
    460,938.20x = 187,536,970,275.20
  5. Step 5: Solve for x
    x = 187,536,970,275.20/460,938.20
  6. Step 6: Final answer
    x = 406,859.25

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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.