Home / 1,005,172.52-1,507,945.55-331,301.16

Finding the Fourth Proportional to 1,005,172.52, 1,507,945.55 and 331,301.16

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Solution

The fourth proportional to 1,005,172.52, 1,507,945.55 and 331,301.16 is: 497,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,172.52 : 1,507,945.55 = 331,301.16 : x
  2. Step 2: Convert to fraction form
    1,005,172.52/1,507,945.55 = 331,301.16/x
  3. Step 3: Cross multiply
    1,005,172.52x = 1,507,945.55 × 331,301.16
  4. Step 4: Simplify right side
    1,005,172.52x = 499,584,108,275.33
  5. Step 5: Solve for x
    x = 499,584,108,275.33/1,005,172.52
  6. Step 6: Final answer
    x = 497,013.30

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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.