Home / 631,669.07-871,792.21-402,153.04

Finding the Fourth Proportional to 631,669.07, 871,792.21 and 402,153.04

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Solution

The fourth proportional to 631,669.07, 871,792.21 and 402,153.04 is: 555,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,669.07 : 871,792.21 = 402,153.04 : x
  2. Step 2: Convert to fraction form
    631,669.07/871,792.21 = 402,153.04/x
  3. Step 3: Cross multiply
    631,669.07x = 871,792.21 × 402,153.04
  4. Step 4: Simplify right side
    631,669.07x = 350,593,884,146.24
  5. Step 5: Solve for x
    x = 350,593,884,146.24/631,669.07
  6. Step 6: Final answer
    x = 555,027.79

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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.