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Finding the Fourth Proportional to 568,150.56, 784,050 and 313,509.12

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Solution

The fourth proportional to 568,150.56, 784,050 and 313,509.12 is: 432,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,150.56 : 784,050 = 313,509.12 : x
  2. Step 2: Convert to fraction form
    568,150.56/784,050 = 313,509.12/x
  3. Step 3: Cross multiply
    568,150.56x = 784,050 × 313,509.12
  4. Step 4: Simplify right side
    568,150.56x = 245,806,825,536
  5. Step 5: Solve for x
    x = 245,806,825,536/568,150.56
  6. Step 6: Final answer
    x = 432,643.81

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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.