Home / 439,364.40-658,528.20-328,426.80

Finding the Fourth Proportional to 439,364.40, 658,528.20 and 328,426.80

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Solution

The fourth proportional to 439,364.40, 658,528.20 and 328,426.80 is: 492,252.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,364.40 : 658,528.20 = 328,426.80 : x
  2. Step 2: Convert to fraction form
    439,364.40/658,528.20 = 328,426.80/x
  3. Step 3: Cross multiply
    439,364.40x = 658,528.20 × 328,426.80
  4. Step 4: Simplify right side
    439,364.40x = 216,278,309,435.76
  5. Step 5: Solve for x
    x = 216,278,309,435.76/439,364.40
  6. Step 6: Final answer
    x = 492,252.69

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1.5x scale

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.