Home / 631,254.40-871,135.84-344,769.28

Finding the Fourth Proportional to 631,254.40, 871,135.84 and 344,769.28

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Solution

The fourth proportional to 631,254.40, 871,135.84 and 344,769.28 is: 475,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,254.40 : 871,135.84 = 344,769.28 : x
  2. Step 2: Convert to fraction form
    631,254.40/871,135.84 = 344,769.28/x
  3. Step 3: Cross multiply
    631,254.40x = 871,135.84 × 344,769.28
  4. Step 4: Simplify right side
    631,254.40x = 300,340,876,339.00
  5. Step 5: Solve for x
    x = 300,340,876,339.00/631,254.40
  6. Step 6: Final answer
    x = 475,784.21

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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.