Home / 2,278,694-3,144,984.40-1,312,383.76

Finding the Fourth Proportional to 2,278,694, 3,144,984.40 and 1,312,383.76

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Solution

The fourth proportional to 2,278,694, 3,144,984.40 and 1,312,383.76 is: 1,811,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,694 : 3,144,984.40 = 1,312,383.76 : x
  2. Step 2: Convert to fraction form
    2,278,694/3,144,984.40 = 1,312,383.76/x
  3. Step 3: Cross multiply
    2,278,694x = 3,144,984.40 × 1,312,383.76
  4. Step 4: Simplify right side
    2,278,694x = 4,127,426,452,013.34
  5. Step 5: Solve for x
    x = 4,127,426,452,013.34/2,278,694
  6. Step 6: Final answer
    x = 1,811,312.29

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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.