Home / 1,221,987.31-1,833,070.89-323,422.96

Finding the Fourth Proportional to 1,221,987.31, 1,833,070.89 and 323,422.96

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Solution

The fourth proportional to 1,221,987.31, 1,833,070.89 and 323,422.96 is: 485,158.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,987.31 : 1,833,070.89 = 323,422.96 : x
  2. Step 2: Convert to fraction form
    1,221,987.31/1,833,070.89 = 323,422.96/x
  3. Step 3: Cross multiply
    1,221,987.31x = 1,833,070.89 × 323,422.96
  4. Step 4: Simplify right side
    1,221,987.31x = 592,857,213,133.63
  5. Step 5: Solve for x
    x = 592,857,213,133.63/1,221,987.31
  6. Step 6: Final answer
    x = 485,158.24

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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.