Home / 2,254,567.78-3,111,239.19-1,287,678.07

Finding the Fourth Proportional to 2,254,567.78, 3,111,239.19 and 1,287,678.07

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Solution

The fourth proportional to 2,254,567.78, 3,111,239.19 and 1,287,678.07 is: 1,776,958.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254,567.78 : 3,111,239.19 = 1,287,678.07 : x
  2. Step 2: Convert to fraction form
    2,254,567.78/3,111,239.19 = 1,287,678.07/x
  3. Step 3: Cross multiply
    2,254,567.78x = 3,111,239.19 × 1,287,678.07
  4. Step 4: Simplify right side
    2,254,567.78x = 4,006,274,475,487.56
  5. Step 5: Solve for x
    x = 4,006,274,475,487.56/2,254,567.78
  6. Step 6: Final answer
    x = 1,776,958.99

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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.