Home / 817,076.20-1,225,176.90-343,226.20

Finding the Fourth Proportional to 817,076.20, 1,225,176.90 and 343,226.20

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Solution

The fourth proportional to 817,076.20, 1,225,176.90 and 343,226.20 is: 514,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,076.20 : 1,225,176.90 = 343,226.20 : x
  2. Step 2: Convert to fraction form
    817,076.20/1,225,176.90 = 343,226.20/x
  3. Step 3: Cross multiply
    817,076.20x = 1,225,176.90 × 343,226.20
  4. Step 4: Simplify right side
    817,076.20x = 420,512,811,714.78
  5. Step 5: Solve for x
    x = 420,512,811,714.78/817,076.20
  6. Step 6: Final answer
    x = 514,655.56

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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.