Home / 824,078.18-1,236,308.98-255,429.12

Finding the Fourth Proportional to 824,078.18, 1,236,308.98 and 255,429.12

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Solution

The fourth proportional to 824,078.18, 1,236,308.98 and 255,429.12 is: 383,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,078.18 : 1,236,308.98 = 255,429.12 : x
  2. Step 2: Convert to fraction form
    824,078.18/1,236,308.98 = 255,429.12/x
  3. Step 3: Cross multiply
    824,078.18x = 1,236,308.98 × 255,429.12
  4. Step 4: Simplify right side
    824,078.18x = 315,789,314,809.50
  5. Step 5: Solve for x
    x = 315,789,314,809.50/824,078.18
  6. Step 6: Final answer
    x = 383,203.10

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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.