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Finding the Fourth Proportional to 614.88, 917.84 and 569.76

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Solution

The fourth proportional to 614.88, 917.84 and 569.76 is: 850.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.88 : 917.84 = 569.76 : x
  2. Step 2: Convert to fraction form
    614.88/917.84 = 569.76/x
  3. Step 3: Cross multiply
    614.88x = 917.84 × 569.76
  4. Step 4: Simplify right side
    614.88x = 522,948.52
  5. Step 5: Solve for x
    x = 522,948.52/614.88
  6. Step 6: Final answer
    x = 850.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.