Home / 347,112.40-519,286.20-313,934.80

Finding the Fourth Proportional to 347,112.40, 519,286.20 and 313,934.80

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Solution

The fourth proportional to 347,112.40, 519,286.20 and 313,934.80 is: 469,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,112.40 : 519,286.20 = 313,934.80 : x
  2. Step 2: Convert to fraction form
    347,112.40/519,286.20 = 313,934.80/x
  3. Step 3: Cross multiply
    347,112.40x = 519,286.20 × 313,934.80
  4. Step 4: Simplify right side
    347,112.40x = 163,022,009,339.76
  5. Step 5: Solve for x
    x = 163,022,009,339.76/347,112.40
  6. Step 6: Final answer
    x = 469,651.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.