Home / 1,189,637.43-1,641,701.75-645,773.59

Finding the Fourth Proportional to 1,189,637.43, 1,641,701.75 and 645,773.59

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Solution

The fourth proportional to 1,189,637.43, 1,641,701.75 and 645,773.59 is: 891,168.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,637.43 : 1,641,701.75 = 645,773.59 : x
  2. Step 2: Convert to fraction form
    1,189,637.43/1,641,701.75 = 645,773.59/x
  3. Step 3: Cross multiply
    1,189,637.43x = 1,641,701.75 × 645,773.59
  4. Step 4: Simplify right side
    1,189,637.43x = 1,060,167,632,806.78
  5. Step 5: Solve for x
    x = 1,060,167,632,806.78/1,189,637.43
  6. Step 6: Final answer
    x = 891,168.69

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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.