Home / 1,214,542.40-1,676,025.60-670,668.80

Finding the Fourth Proportional to 1,214,542.40, 1,676,025.60 and 670,668.80

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Solution

The fourth proportional to 1,214,542.40, 1,676,025.60 and 670,668.80 is: 925,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,542.40 : 1,676,025.60 = 670,668.80 : x
  2. Step 2: Convert to fraction form
    1,214,542.40/1,676,025.60 = 670,668.80/x
  3. Step 3: Cross multiply
    1,214,542.40x = 1,676,025.60 × 670,668.80
  4. Step 4: Simplify right side
    1,214,542.40x = 1,124,058,077,921.28
  5. Step 5: Solve for x
    x = 1,124,058,077,921.28/1,214,542.40
  6. Step 6: Final answer
    x = 925,499.25

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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.