Home / 1,403,999.90-2,105,999.85-1,124,063.90

Finding the Fourth Proportional to 1,403,999.90, 2,105,999.85 and 1,124,063.90

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Solution

The fourth proportional to 1,403,999.90, 2,105,999.85 and 1,124,063.90 is: 1,686,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,999.90 : 2,105,999.85 = 1,124,063.90 : x
  2. Step 2: Convert to fraction form
    1,403,999.90/2,105,999.85 = 1,124,063.90/x
  3. Step 3: Cross multiply
    1,403,999.90x = 2,105,999.85 × 1,124,063.90
  4. Step 4: Simplify right side
    1,403,999.90x = 2,367,278,404,790.42
  5. Step 5: Solve for x
    x = 2,367,278,404,790.42/1,403,999.90
  6. Step 6: Final answer
    x = 1,686,095.85

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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.