Home / 1,127,111.46-1,687,862.34-788,568.09

Finding the Fourth Proportional to 1,127,111.46, 1,687,862.34 and 788,568.09

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Solution

The fourth proportional to 1,127,111.46, 1,687,862.34 and 788,568.09 is: 1,180,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,111.46 : 1,687,862.34 = 788,568.09 : x
  2. Step 2: Convert to fraction form
    1,127,111.46/1,687,862.34 = 788,568.09/x
  3. Step 3: Cross multiply
    1,127,111.46x = 1,687,862.34 × 788,568.09
  4. Step 4: Simplify right side
    1,127,111.46x = 1,330,994,381,636.73
  5. Step 5: Solve for x
    x = 1,330,994,381,636.73/1,127,111.46
  6. Step 6: Final answer
    x = 1,180,889.76

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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.