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Finding the Fourth Proportional to 631,959.40, 872,114.34 and 377,332.84

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Solution

The fourth proportional to 631,959.40, 872,114.34 and 377,332.84 is: 520,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,959.40 : 872,114.34 = 377,332.84 : x
  2. Step 2: Convert to fraction form
    631,959.40/872,114.34 = 377,332.84/x
  3. Step 3: Cross multiply
    631,959.40x = 872,114.34 × 377,332.84
  4. Step 4: Simplify right side
    631,959.40x = 329,077,380,716.93
  5. Step 5: Solve for x
    x = 329,077,380,716.93/631,959.40
  6. Step 6: Final answer
    x = 520,725.51

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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.