Home / 1,140,778.13-1,712,849.36-636,324.71

Finding the Fourth Proportional to 1,140,778.13, 1,712,849.36 and 636,324.71

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Solution

The fourth proportional to 1,140,778.13, 1,712,849.36 and 636,324.71 is: 955,425.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,778.13 : 1,712,849.36 = 636,324.71 : x
  2. Step 2: Convert to fraction form
    1,140,778.13/1,712,849.36 = 636,324.71/x
  3. Step 3: Cross multiply
    1,140,778.13x = 1,712,849.36 × 636,324.71
  4. Step 4: Simplify right side
    1,140,778.13x = 1,089,928,360,529.82
  5. Step 5: Solve for x
    x = 1,089,928,360,529.82/1,140,778.13
  6. Step 6: Final answer
    x = 955,425.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.