Home / 824,342.40-1,236,690.11-255,711.20

Finding the Fourth Proportional to 824,342.40, 1,236,690.11 and 255,711.20

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Solution

The fourth proportional to 824,342.40, 1,236,690.11 and 255,711.20 is: 383,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,342.40 : 1,236,690.11 = 255,711.20 : x
  2. Step 2: Convert to fraction form
    824,342.40/1,236,690.11 = 255,711.20/x
  3. Step 3: Cross multiply
    824,342.40x = 1,236,690.11 × 255,711.20
  4. Step 4: Simplify right side
    824,342.40x = 316,235,506,512.06
  5. Step 5: Solve for x
    x = 316,235,506,512.06/824,342.40
  6. Step 6: Final answer
    x = 383,621.55

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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.