Home / 828,124.20-1,242,359.10-267,215.40

Finding the Fourth Proportional to 828,124.20, 1,242,359.10 and 267,215.40

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Solution

The fourth proportional to 828,124.20, 1,242,359.10 and 267,215.40 is: 400,878.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,124.20 : 1,242,359.10 = 267,215.40 : x
  2. Step 2: Convert to fraction form
    828,124.20/1,242,359.10 = 267,215.40/x
  3. Step 3: Cross multiply
    828,124.20x = 1,242,359.10 × 267,215.40
  4. Step 4: Simplify right side
    828,124.20x = 331,977,483,850.14
  5. Step 5: Solve for x
    x = 331,977,483,850.14/828,124.20
  6. Step 6: Final answer
    x = 400,878.86

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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.