Home / 631,213.36-871,080.01-359,298.77

Finding the Fourth Proportional to 631,213.36, 871,080.01 and 359,298.77

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Solution

The fourth proportional to 631,213.36, 871,080.01 and 359,298.77 is: 495,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,213.36 : 871,080.01 = 359,298.77 : x
  2. Step 2: Convert to fraction form
    631,213.36/871,080.01 = 359,298.77/x
  3. Step 3: Cross multiply
    631,213.36x = 871,080.01 × 359,298.77
  4. Step 4: Simplify right side
    631,213.36x = 312,977,970,910.94
  5. Step 5: Solve for x
    x = 312,977,970,910.94/631,213.36
  6. Step 6: Final answer
    x = 495,835.47

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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.