Home / 1,260,612.90-1,739,658.42-687,665.16

Finding the Fourth Proportional to 1,260,612.90, 1,739,658.42 and 687,665.16

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Solution

The fourth proportional to 1,260,612.90, 1,739,658.42 and 687,665.16 is: 948,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,612.90 : 1,739,658.42 = 687,665.16 : x
  2. Step 2: Convert to fraction form
    1,260,612.90/1,739,658.42 = 687,665.16/x
  3. Step 3: Cross multiply
    1,260,612.90x = 1,739,658.42 × 687,665.16
  4. Step 4: Simplify right side
    1,260,612.90x = 1,196,302,485,734.65
  5. Step 5: Solve for x
    x = 1,196,302,485,734.65/1,260,612.90
  6. Step 6: Final answer
    x = 948,984.80

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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.