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Finding the Fourth Proportional to 883.94, 1,219.69 and 529.77

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Solution

The fourth proportional to 883.94, 1,219.69 and 529.77 is: 730.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.94 : 1,219.69 = 529.77 : x
  2. Step 2: Convert to fraction form
    883.94/1,219.69 = 529.77/x
  3. Step 3: Cross multiply
    883.94x = 1,219.69 × 529.77
  4. Step 4: Simplify right side
    883.94x = 646,155.17
  5. Step 5: Solve for x
    x = 646,155.17/883.94
  6. Step 6: Final answer
    x = 730.99

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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.