Home / 1,260,615.90-1,739,662.56-687,668.16

Finding the Fourth Proportional to 1,260,615.90, 1,739,662.56 and 687,668.16

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Solution

The fourth proportional to 1,260,615.90, 1,739,662.56 and 687,668.16 is: 948,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,615.90 : 1,739,662.56 = 687,668.16 : x
  2. Step 2: Convert to fraction form
    1,260,615.90/1,739,662.56 = 687,668.16/x
  3. Step 3: Cross multiply
    1,260,615.90x = 1,739,662.56 × 687,668.16
  4. Step 4: Simplify right side
    1,260,615.90x = 1,196,310,551,656.09
  5. Step 5: Solve for x
    x = 1,196,310,551,656.09/1,260,615.90
  6. Step 6: Final answer
    x = 948,988.94

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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.