Home / 1,187,743.46-1,639,065.85-671,489.55

Finding the Fourth Proportional to 1,187,743.46, 1,639,065.85 and 671,489.55

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Solution

The fourth proportional to 1,187,743.46, 1,639,065.85 and 671,489.55 is: 926,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,743.46 : 1,639,065.85 = 671,489.55 : x
  2. Step 2: Convert to fraction form
    1,187,743.46/1,639,065.85 = 671,489.55/x
  3. Step 3: Cross multiply
    1,187,743.46x = 1,639,065.85 × 671,489.55
  4. Step 4: Simplify right side
    1,187,743.46x = 1,100,615,588,358.14
  5. Step 5: Solve for x
    x = 1,100,615,588,358.14/1,187,743.46
  6. Step 6: Final answer
    x = 926,644.20

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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.