Home / 1,189,608.52-1,641,615.24-645,732.60

Finding the Fourth Proportional to 1,189,608.52, 1,641,615.24 and 645,732.60

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Solution

The fourth proportional to 1,189,608.52, 1,641,615.24 and 645,732.60 is: 891,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,608.52 : 1,641,615.24 = 645,732.60 : x
  2. Step 2: Convert to fraction form
    1,189,608.52/1,641,615.24 = 645,732.60/x
  3. Step 3: Cross multiply
    1,189,608.52x = 1,641,615.24 × 645,732.60
  4. Step 4: Simplify right side
    1,189,608.52x = 1,060,044,477,124.82
  5. Step 5: Solve for x
    x = 1,060,044,477,124.82/1,189,608.52
  6. Step 6: Final answer
    x = 891,086.82

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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.