Home / 826,765.20-1,240,147.80-265,856.40

Finding the Fourth Proportional to 826,765.20, 1,240,147.80 and 265,856.40

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Solution

The fourth proportional to 826,765.20, 1,240,147.80 and 265,856.40 is: 398,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,765.20 : 1,240,147.80 = 265,856.40 : x
  2. Step 2: Convert to fraction form
    826,765.20/1,240,147.80 = 265,856.40/x
  3. Step 3: Cross multiply
    826,765.20x = 1,240,147.80 × 265,856.40
  4. Step 4: Simplify right side
    826,765.20x = 329,701,229,575.92
  5. Step 5: Solve for x
    x = 329,701,229,575.92/826,765.20
  6. Step 6: Final answer
    x = 398,784.60

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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.