Home / 807,687.40-1,211,531.10-792,135.40

Finding the Fourth Proportional to 807,687.40, 1,211,531.10 and 792,135.40

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Solution

The fourth proportional to 807,687.40, 1,211,531.10 and 792,135.40 is: 1,188,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,687.40 : 1,211,531.10 = 792,135.40 : x
  2. Step 2: Convert to fraction form
    807,687.40/1,211,531.10 = 792,135.40/x
  3. Step 3: Cross multiply
    807,687.40x = 1,211,531.10 × 792,135.40
  4. Step 4: Simplify right side
    807,687.40x = 959,696,672,510.94
  5. Step 5: Solve for x
    x = 959,696,672,510.94/807,687.40
  6. Step 6: Final answer
    x = 1,188,203.10

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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.