Home / 1,260,629.16-1,739,657.10-687,657

Finding the Fourth Proportional to 1,260,629.16, 1,739,657.10 and 687,657

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Solution

The fourth proportional to 1,260,629.16, 1,739,657.10 and 687,657 is: 948,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,629.16 : 1,739,657.10 = 687,657 : x
  2. Step 2: Convert to fraction form
    1,260,629.16/1,739,657.10 = 687,657/x
  3. Step 3: Cross multiply
    1,260,629.16x = 1,739,657.10 × 687,657
  4. Step 4: Simplify right side
    1,260,629.16x = 1,196,287,382,414.70
  5. Step 5: Solve for x
    x = 1,196,287,382,414.70/1,260,629.16
  6. Step 6: Final answer
    x = 948,960.58

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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.