Home / 939,780.35-1,407,285.92-787,577.30

Finding the Fourth Proportional to 939,780.35, 1,407,285.92 and 787,577.30

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Solution

The fourth proportional to 939,780.35, 1,407,285.92 and 787,577.30 is: 1,179,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,780.35 : 1,407,285.92 = 787,577.30 : x
  2. Step 2: Convert to fraction form
    939,780.35/1,407,285.92 = 787,577.30/x
  3. Step 3: Cross multiply
    939,780.35x = 1,407,285.92 × 787,577.30
  4. Step 4: Simplify right side
    939,780.35x = 1,108,346,450,688.77
  5. Step 5: Solve for x
    x = 1,108,346,450,688.77/939,780.35
  6. Step 6: Final answer
    x = 1,179,367.55

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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.