Home / 824,080.31-1,236,312.16-255,431.24

Finding the Fourth Proportional to 824,080.31, 1,236,312.16 and 255,431.24

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Solution

The fourth proportional to 824,080.31, 1,236,312.16 and 255,431.24 is: 383,206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,080.31 : 1,236,312.16 = 255,431.24 : x
  2. Step 2: Convert to fraction form
    824,080.31/1,236,312.16 = 255,431.24/x
  3. Step 3: Cross multiply
    824,080.31x = 1,236,312.16 × 255,431.24
  4. Step 4: Simplify right side
    824,080.31x = 315,792,741,235.74
  5. Step 5: Solve for x
    x = 315,792,741,235.74/824,080.31
  6. Step 6: Final answer
    x = 383,206.27

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Double scale
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Similar ratio
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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.