Home / 1,555,431.30-2,331,725.40-1,317,079.89

Finding the Fourth Proportional to 1,555,431.30, 2,331,725.40 and 1,317,079.89

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Solution

The fourth proportional to 1,555,431.30, 2,331,725.40 and 1,317,079.89 is: 1,974,416.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,431.30 : 2,331,725.40 = 1,317,079.89 : x
  2. Step 2: Convert to fraction form
    1,555,431.30/2,331,725.40 = 1,317,079.89/x
  3. Step 3: Cross multiply
    1,555,431.30x = 2,331,725.40 × 1,317,079.89
  4. Step 4: Simplify right side
    1,555,431.30x = 3,071,068,633,342.21
  5. Step 5: Solve for x
    x = 3,071,068,633,342.21/1,555,431.30
  6. Step 6: Final answer
    x = 1,974,416.12

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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.