Home / 1,189,791.12-1,641,924.24-645,931.92

Finding the Fourth Proportional to 1,189,791.12, 1,641,924.24 and 645,931.92

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Solution

The fourth proportional to 1,189,791.12, 1,641,924.24 and 645,931.92 is: 891,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,791.12 : 1,641,924.24 = 645,931.92 : x
  2. Step 2: Convert to fraction form
    1,189,791.12/1,641,924.24 = 645,931.92/x
  3. Step 3: Cross multiply
    1,189,791.12x = 1,641,924.24 × 645,931.92
  4. Step 4: Simplify right side
    1,189,791.12x = 1,060,571,276,837.74
  5. Step 5: Solve for x
    x = 1,060,571,276,837.74/1,189,791.12
  6. Step 6: Final answer
    x = 891,392.83

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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.