Home / 828,267.40-1,242,401.10-814,270.60

Finding the Fourth Proportional to 828,267.40, 1,242,401.10 and 814,270.60

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Solution

The fourth proportional to 828,267.40, 1,242,401.10 and 814,270.60 is: 1,221,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,267.40 : 1,242,401.10 = 814,270.60 : x
  2. Step 2: Convert to fraction form
    828,267.40/1,242,401.10 = 814,270.60/x
  3. Step 3: Cross multiply
    828,267.40x = 1,242,401.10 × 814,270.60
  4. Step 4: Simplify right side
    828,267.40x = 1,011,650,689,137.66
  5. Step 5: Solve for x
    x = 1,011,650,689,137.66/828,267.40
  6. Step 6: Final answer
    x = 1,221,405.90

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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.