Home / 2,254,544.28-3,111,206.76-1,287,654.57

Finding the Fourth Proportional to 2,254,544.28, 3,111,206.76 and 1,287,654.57

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Solution

The fourth proportional to 2,254,544.28, 3,111,206.76 and 1,287,654.57 is: 1,776,926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254,544.28 : 3,111,206.76 = 1,287,654.57 : x
  2. Step 2: Convert to fraction form
    2,254,544.28/3,111,206.76 = 1,287,654.57/x
  3. Step 3: Cross multiply
    2,254,544.28x = 3,111,206.76 × 1,287,654.57
  4. Step 4: Simplify right side
    2,254,544.28x = 4,006,159,602,728.89
  5. Step 5: Solve for x
    x = 4,006,159,602,728.89/2,254,544.28
  6. Step 6: Final answer
    x = 1,776,926.56

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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.