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Finding the Fourth Proportional to 880.54, 1,214.53 and 585.77

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Solution

The fourth proportional to 880.54, 1,214.53 and 585.77 is: 807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.54 : 1,214.53 = 585.77 : x
  2. Step 2: Convert to fraction form
    880.54/1,214.53 = 585.77/x
  3. Step 3: Cross multiply
    880.54x = 1,214.53 × 585.77
  4. Step 4: Simplify right side
    880.54x = 711,427.70
  5. Step 5: Solve for x
    x = 711,427.70/880.54
  6. Step 6: Final answer
    x = 807.95

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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.