Home / 831,382.95-1,245,598.20-778,238.85

Finding the Fourth Proportional to 831,382.95, 1,245,598.20 and 778,238.85

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Solution

The fourth proportional to 831,382.95, 1,245,598.20 and 778,238.85 is: 1,165,976.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,382.95 : 1,245,598.20 = 778,238.85 : x
  2. Step 2: Convert to fraction form
    831,382.95/1,245,598.20 = 778,238.85/x
  3. Step 3: Cross multiply
    831,382.95x = 1,245,598.20 × 778,238.85
  4. Step 4: Simplify right side
    831,382.95x = 969,372,910,730.07
  5. Step 5: Solve for x
    x = 969,372,910,730.07/831,382.95
  6. Step 6: Final answer
    x = 1,165,976.41

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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.