Home / 631,377.82-871,320.54-344,916.36

Finding the Fourth Proportional to 631,377.82, 871,320.54 and 344,916.36

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Solution

The fourth proportional to 631,377.82, 871,320.54 and 344,916.36 is: 475,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,377.82 : 871,320.54 = 344,916.36 : x
  2. Step 2: Convert to fraction form
    631,377.82/871,320.54 = 344,916.36/x
  3. Step 3: Cross multiply
    631,377.82x = 871,320.54 × 344,916.36
  4. Step 4: Simplify right side
    631,377.82x = 300,532,710,343.47
  5. Step 5: Solve for x
    x = 300,532,710,343.47/631,377.82
  6. Step 6: Final answer
    x = 475,995.04

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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.