Home / 2,239,915.15-3,091,085.98-1,221,319.90

Finding the Fourth Proportional to 2,239,915.15, 3,091,085.98 and 1,221,319.90

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Solution

The fourth proportional to 2,239,915.15, 3,091,085.98 and 1,221,319.90 is: 1,685,423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239,915.15 : 3,091,085.98 = 1,221,319.90 : x
  2. Step 2: Convert to fraction form
    2,239,915.15/3,091,085.98 = 1,221,319.90/x
  3. Step 3: Cross multiply
    2,239,915.15x = 3,091,085.98 × 1,221,319.90
  4. Step 4: Simplify right side
    2,239,915.15x = 3,775,204,815,536.96
  5. Step 5: Solve for x
    x = 3,775,204,815,536.96/2,239,915.15
  6. Step 6: Final answer
    x = 1,685,423.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.