Home / 1,317,105.52-1,974,240.93-861,525.17

Finding the Fourth Proportional to 1,317,105.52, 1,974,240.93 and 861,525.17

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Solution

The fourth proportional to 1,317,105.52, 1,974,240.93 and 861,525.17 is: 1,291,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,105.52 : 1,974,240.93 = 861,525.17 : x
  2. Step 2: Convert to fraction form
    1,317,105.52/1,974,240.93 = 861,525.17/x
  3. Step 3: Cross multiply
    1,317,105.52x = 1,974,240.93 × 861,525.17
  4. Step 4: Simplify right side
    1,317,105.52x = 1,700,858,252,839.21
  5. Step 5: Solve for x
    x = 1,700,858,252,839.21/1,317,105.52
  6. Step 6: Final answer
    x = 1,291,360.66

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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.