Home / 1,140,778.76-1,712,850.28-636,325.34

Finding the Fourth Proportional to 1,140,778.76, 1,712,850.28 and 636,325.34

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Solution

The fourth proportional to 1,140,778.76, 1,712,850.28 and 636,325.34 is: 955,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,778.76 : 1,712,850.28 = 636,325.34 : x
  2. Step 2: Convert to fraction form
    1,140,778.76/1,712,850.28 = 636,325.34/x
  3. Step 3: Cross multiply
    1,140,778.76x = 1,712,850.28 × 636,325.34
  4. Step 4: Simplify right side
    1,140,778.76x = 1,089,930,036,790.10
  5. Step 5: Solve for x
    x = 1,089,930,036,790.10/1,140,778.76
  6. Step 6: Final answer
    x = 955,426.31

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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.