Home / 1,676,576.34-2,313,726.39-1,187,422.20

Finding the Fourth Proportional to 1,676,576.34, 2,313,726.39 and 1,187,422.20

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Solution

The fourth proportional to 1,676,576.34, 2,313,726.39 and 1,187,422.20 is: 1,638,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676,576.34 : 2,313,726.39 = 1,187,422.20 : x
  2. Step 2: Convert to fraction form
    1,676,576.34/2,313,726.39 = 1,187,422.20/x
  3. Step 3: Cross multiply
    1,676,576.34x = 2,313,726.39 × 1,187,422.20
  4. Step 4: Simplify right side
    1,676,576.34x = 2,747,370,080,211.86
  5. Step 5: Solve for x
    x = 2,747,370,080,211.86/1,676,576.34
  6. Step 6: Final answer
    x = 1,638,678.79

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1.5x scale

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.