Home / 1,202,141.28-1,658,975.36-658,268.40

Finding the Fourth Proportional to 1,202,141.28, 1,658,975.36 and 658,268.40

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Solution

The fourth proportional to 1,202,141.28, 1,658,975.36 and 658,268.40 is: 908,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,141.28 : 1,658,975.36 = 658,268.40 : x
  2. Step 2: Convert to fraction form
    1,202,141.28/1,658,975.36 = 658,268.40/x
  3. Step 3: Cross multiply
    1,202,141.28x = 1,658,975.36 × 658,268.40
  4. Step 4: Simplify right side
    1,202,141.28x = 1,092,051,055,866.62
  5. Step 5: Solve for x
    x = 1,092,051,055,866.62/1,202,141.28
  6. Step 6: Final answer
    x = 908,421.56

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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.