Home / 631,921.36-872,057.29-359,985.23

Finding the Fourth Proportional to 631,921.36, 872,057.29 and 359,985.23

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Solution

The fourth proportional to 631,921.36, 872,057.29 and 359,985.23 is: 496,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,921.36 : 872,057.29 = 359,985.23 : x
  2. Step 2: Convert to fraction form
    631,921.36/872,057.29 = 359,985.23/x
  3. Step 3: Cross multiply
    631,921.36x = 872,057.29 × 359,985.23
  4. Step 4: Simplify right side
    631,921.36x = 313,927,744,113.83
  5. Step 5: Solve for x
    x = 313,927,744,113.83/631,921.36
  6. Step 6: Final answer
    x = 496,782.93

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1.5x scale

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.