Home / 306,925.28-460,387.92-289,599.20

Finding the Fourth Proportional to 306,925.28, 460,387.92 and 289,599.20

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Solution

The fourth proportional to 306,925.28, 460,387.92 and 289,599.20 is: 434,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,925.28 : 460,387.92 = 289,599.20 : x
  2. Step 2: Convert to fraction form
    306,925.28/460,387.92 = 289,599.20/x
  3. Step 3: Cross multiply
    306,925.28x = 460,387.92 × 289,599.20
  4. Step 4: Simplify right side
    306,925.28x = 133,327,973,321.66
  5. Step 5: Solve for x
    x = 133,327,973,321.66/306,925.28
  6. Step 6: Final answer
    x = 434,398.80

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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.