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Finding the Fourth Proportional to 568.84, 783.82 and 457.87

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Solution

The fourth proportional to 568.84, 783.82 and 457.87 is: 630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.84 : 783.82 = 457.87 : x
  2. Step 2: Convert to fraction form
    568.84/783.82 = 457.87/x
  3. Step 3: Cross multiply
    568.84x = 783.82 × 457.87
  4. Step 4: Simplify right side
    568.84x = 358,887.66
  5. Step 5: Solve for x
    x = 358,887.66/568.84
  6. Step 6: Final answer
    x = 630.91

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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.