Home / 690,419.52-1,035,147.96-305,959.02

Finding the Fourth Proportional to 690,419.52, 1,035,147.96 and 305,959.02

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Solution

The fourth proportional to 690,419.52, 1,035,147.96 and 305,959.02 is: 458,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,419.52 : 1,035,147.96 = 305,959.02 : x
  2. Step 2: Convert to fraction form
    690,419.52/1,035,147.96 = 305,959.02/x
  3. Step 3: Cross multiply
    690,419.52x = 1,035,147.96 × 305,959.02
  4. Step 4: Simplify right side
    690,419.52x = 316,712,855,396.60
  5. Step 5: Solve for x
    x = 316,712,855,396.60/690,419.52
  6. Step 6: Final answer
    x = 458,725.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.