Home / 1,253,133.11-1,730,106.64-861,340.57

Finding the Fourth Proportional to 1,253,133.11, 1,730,106.64 and 861,340.57

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Solution

The fourth proportional to 1,253,133.11, 1,730,106.64 and 861,340.57 is: 1,189,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,133.11 : 1,730,106.64 = 861,340.57 : x
  2. Step 2: Convert to fraction form
    1,253,133.11/1,730,106.64 = 861,340.57/x
  3. Step 3: Cross multiply
    1,253,133.11x = 1,730,106.64 × 861,340.57
  4. Step 4: Simplify right side
    1,253,133.11x = 1,490,211,036,209.79
  5. Step 5: Solve for x
    x = 1,490,211,036,209.79/1,253,133.11
  6. Step 6: Final answer
    x = 1,189,188.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.