Home / 1,107,816.40-1,662,380.70-807,541.30

Finding the Fourth Proportional to 1,107,816.40, 1,662,380.70 and 807,541.30

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Solution

The fourth proportional to 1,107,816.40, 1,662,380.70 and 807,541.30 is: 1,211,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,816.40 : 1,662,380.70 = 807,541.30 : x
  2. Step 2: Convert to fraction form
    1,107,816.40/1,662,380.70 = 807,541.30/x
  3. Step 3: Cross multiply
    1,107,816.40x = 1,662,380.70 × 807,541.30
  4. Step 4: Simplify right side
    1,107,816.40x = 1,342,441,071,572.91
  5. Step 5: Solve for x
    x = 1,342,441,071,572.91/1,107,816.40
  6. Step 6: Final answer
    x = 1,211,790.21

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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.