Home / 631,919.36-872,054.53-359,983.23

Finding the Fourth Proportional to 631,919.36, 872,054.53 and 359,983.23

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Solution

The fourth proportional to 631,919.36, 872,054.53 and 359,983.23 is: 496,780.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,919.36 : 872,054.53 = 359,983.23 : x
  2. Step 2: Convert to fraction form
    631,919.36/872,054.53 = 359,983.23/x
  3. Step 3: Cross multiply
    631,919.36x = 872,054.53 × 359,983.23
  4. Step 4: Simplify right side
    631,919.36x = 313,925,005,545.57
  5. Step 5: Solve for x
    x = 313,925,005,545.57/631,919.36
  6. Step 6: Final answer
    x = 496,780.17

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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.