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Finding the Fourth Proportional to 568.33, 784.24 and 347.40

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Solution

The fourth proportional to 568.33, 784.24 and 347.40 is: 479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.33 : 784.24 = 347.40 : x
  2. Step 2: Convert to fraction form
    568.33/784.24 = 347.40/x
  3. Step 3: Cross multiply
    568.33x = 784.24 × 347.40
  4. Step 4: Simplify right side
    568.33x = 272,444.98
  5. Step 5: Solve for x
    x = 272,444.98/568.33
  6. Step 6: Final answer
    x = 479.38

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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.