Home / 652,887.18-978,170.31-272,971.26

Finding the Fourth Proportional to 652,887.18, 978,170.31 and 272,971.26

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Solution

The fourth proportional to 652,887.18, 978,170.31 and 272,971.26 is: 408,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,887.18 : 978,170.31 = 272,971.26 : x
  2. Step 2: Convert to fraction form
    652,887.18/978,170.31 = 272,971.26/x
  3. Step 3: Cross multiply
    652,887.18x = 978,170.31 × 272,971.26
  4. Step 4: Simplify right side
    652,887.18x = 267,012,382,015.29
  5. Step 5: Solve for x
    x = 267,012,382,015.29/652,887.18
  6. Step 6: Final answer
    x = 408,971.70

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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.