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Finding the Fourth Proportional to 568,426.94, 784,435.47 and 313,778.42

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Solution

The fourth proportional to 568,426.94, 784,435.47 and 313,778.42 is: 433,017.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,426.94 : 784,435.47 = 313,778.42 : x
  2. Step 2: Convert to fraction form
    568,426.94/784,435.47 = 313,778.42/x
  3. Step 3: Cross multiply
    568,426.94x = 784,435.47 × 313,778.42
  4. Step 4: Simplify right side
    568,426.94x = 246,138,922,368.56
  5. Step 5: Solve for x
    x = 246,138,922,368.56/568,426.94
  6. Step 6: Final answer
    x = 433,017.69

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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.