Home / 1,221,986.31-1,833,069.39-323,421.96

Finding the Fourth Proportional to 1,221,986.31, 1,833,069.39 and 323,421.96

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Solution

The fourth proportional to 1,221,986.31, 1,833,069.39 and 323,421.96 is: 485,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,986.31 : 1,833,069.39 = 323,421.96 : x
  2. Step 2: Convert to fraction form
    1,221,986.31/1,833,069.39 = 323,421.96/x
  3. Step 3: Cross multiply
    1,221,986.31x = 1,833,069.39 × 323,421.96
  4. Step 4: Simplify right side
    1,221,986.31x = 592,854,894,929.81
  5. Step 5: Solve for x
    x = 592,854,894,929.81/1,221,986.31
  6. Step 6: Final answer
    x = 485,156.74

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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.