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Finding the Fourth Proportional to 614.44, 916.01 and 556.12

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Solution

The fourth proportional to 614.44, 916.01 and 556.12 is: 829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.44 : 916.01 = 556.12 : x
  2. Step 2: Convert to fraction form
    614.44/916.01 = 556.12/x
  3. Step 3: Cross multiply
    614.44x = 916.01 × 556.12
  4. Step 4: Simplify right side
    614.44x = 509,411.48
  5. Step 5: Solve for x
    x = 509,411.48/614.44
  6. Step 6: Final answer
    x = 829.07

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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.