Home / 1,239,325.80-1,856,565.18-855,015.23

Finding the Fourth Proportional to 1,239,325.80, 1,856,565.18 and 855,015.23

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Solution

The fourth proportional to 1,239,325.80, 1,856,565.18 and 855,015.23 is: 1,280,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,325.80 : 1,856,565.18 = 855,015.23 : x
  2. Step 2: Convert to fraction form
    1,239,325.80/1,856,565.18 = 855,015.23/x
  3. Step 3: Cross multiply
    1,239,325.80x = 1,856,565.18 × 855,015.23
  4. Step 4: Simplify right side
    1,239,325.80x = 1,587,391,495,104.87
  5. Step 5: Solve for x
    x = 1,587,391,495,104.87/1,239,325.80
  6. Step 6: Final answer
    x = 1,280,850.84

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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.