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Finding the Fourth Proportional to 1,260,793.56, 1,739,834.46 and 687,799.56

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Solution

The fourth proportional to 1,260,793.56, 1,739,834.46 and 687,799.56 is: 949,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,793.56 : 1,739,834.46 = 687,799.56 : x
  2. Step 2: Convert to fraction form
    1,260,793.56/1,739,834.46 = 687,799.56/x
  3. Step 3: Cross multiply
    1,260,793.56x = 1,739,834.46 × 687,799.56
  4. Step 4: Simplify right side
    1,260,793.56x = 1,196,657,376,060.84
  5. Step 5: Solve for x
    x = 1,196,657,376,060.84/1,260,793.56
  6. Step 6: Final answer
    x = 949,130.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.