Home / 1,221,599.88-1,831,514.10-821,248.20

Finding the Fourth Proportional to 1,221,599.88, 1,831,514.10 and 821,248.20

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Solution

The fourth proportional to 1,221,599.88, 1,831,514.10 and 821,248.20 is: 1,231,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,599.88 : 1,831,514.10 = 821,248.20 : x
  2. Step 2: Convert to fraction form
    1,221,599.88/1,831,514.10 = 821,248.20/x
  3. Step 3: Cross multiply
    1,221,599.88x = 1,831,514.10 × 821,248.20
  4. Step 4: Simplify right side
    1,221,599.88x = 1,504,127,657,899.62
  5. Step 5: Solve for x
    x = 1,504,127,657,899.62/1,221,599.88
  6. Step 6: Final answer
    x = 1,231,276.85

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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.