Home / 2,278,695.49-3,144,986.48-1,312,385.26

Finding the Fourth Proportional to 2,278,695.49, 3,144,986.48 and 1,312,385.26

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Solution

The fourth proportional to 2,278,695.49, 3,144,986.48 and 1,312,385.26 is: 1,811,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,695.49 : 3,144,986.48 = 1,312,385.26 : x
  2. Step 2: Convert to fraction form
    2,278,695.49/3,144,986.48 = 1,312,385.26/x
  3. Step 3: Cross multiply
    2,278,695.49x = 3,144,986.48 × 1,312,385.26
  4. Step 4: Simplify right side
    2,278,695.49x = 4,127,433,899,251.28
  5. Step 5: Solve for x
    x = 4,127,433,899,251.28/2,278,695.49
  6. Step 6: Final answer
    x = 1,811,314.38

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Double scale
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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.