Home / 828,278.40-1,242,417.60-814,281.60

Finding the Fourth Proportional to 828,278.40, 1,242,417.60 and 814,281.60

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Solution

The fourth proportional to 828,278.40, 1,242,417.60 and 814,281.60 is: 1,221,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,278.40 : 1,242,417.60 = 814,281.60 : x
  2. Step 2: Convert to fraction form
    828,278.40/1,242,417.60 = 814,281.60/x
  3. Step 3: Cross multiply
    828,278.40x = 1,242,417.60 × 814,281.60
  4. Step 4: Simplify right side
    828,278.40x = 1,011,677,791,196.16
  5. Step 5: Solve for x
    x = 1,011,677,791,196.16/828,278.40
  6. Step 6: Final answer
    x = 1,221,422.40

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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.