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Finding the Fourth Proportional to 568,447.36, 784,458.24 and 310,326.40

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Solution

The fourth proportional to 568,447.36, 784,458.24 and 310,326.40 is: 428,250.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,447.36 : 784,458.24 = 310,326.40 : x
  2. Step 2: Convert to fraction form
    568,447.36/784,458.24 = 310,326.40/x
  3. Step 3: Cross multiply
    568,447.36x = 784,458.24 × 310,326.40
  4. Step 4: Simplify right side
    568,447.36x = 243,438,101,569.54
  5. Step 5: Solve for x
    x = 243,438,101,569.54/568,447.36
  6. Step 6: Final answer
    x = 428,250.91

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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.