Home / 816,942.10-1,225,251.31-776,434.90

Finding the Fourth Proportional to 816,942.10, 1,225,251.31 and 776,434.90

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Solution

The fourth proportional to 816,942.10, 1,225,251.31 and 776,434.90 is: 1,164,498.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,942.10 : 1,225,251.31 = 776,434.90 : x
  2. Step 2: Convert to fraction form
    816,942.10/1,225,251.31 = 776,434.90/x
  3. Step 3: Cross multiply
    816,942.10x = 1,225,251.31 × 776,434.90
  4. Step 4: Simplify right side
    816,942.10x = 951,327,878,354.72
  5. Step 5: Solve for x
    x = 951,327,878,354.72/816,942.10
  6. Step 6: Final answer
    x = 1,164,498.53

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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.