Home / 1,196,728.14-1,651,484.76-687,430.38

Finding the Fourth Proportional to 1,196,728.14, 1,651,484.76 and 687,430.38

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Solution

The fourth proportional to 1,196,728.14, 1,651,484.76 and 687,430.38 is: 948,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,728.14 : 1,651,484.76 = 687,430.38 : x
  2. Step 2: Convert to fraction form
    1,196,728.14/1,651,484.76 = 687,430.38/x
  3. Step 3: Cross multiply
    1,196,728.14x = 1,651,484.76 × 687,430.38
  4. Step 4: Simplify right side
    1,196,728.14x = 1,135,280,796,131.01
  5. Step 5: Solve for x
    x = 1,135,280,796,131.01/1,196,728.14
  6. Step 6: Final answer
    x = 948,653.88

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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.