Home / 631,411.20-871,336.47-344,923.92

Finding the Fourth Proportional to 631,411.20, 871,336.47 and 344,923.92

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Solution

The fourth proportional to 631,411.20, 871,336.47 and 344,923.92 is: 475,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,411.20 : 871,336.47 = 344,923.92 : x
  2. Step 2: Convert to fraction form
    631,411.20/871,336.47 = 344,923.92/x
  3. Step 3: Cross multiply
    631,411.20x = 871,336.47 × 344,923.92
  4. Step 4: Simplify right side
    631,411.20x = 300,544,790,871.36
  5. Step 5: Solve for x
    x = 300,544,790,871.36/631,411.20
  6. Step 6: Final answer
    x = 475,989.01

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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.