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Finding the Fourth Proportional to 883.58, 1,323.95 and 623.70

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Solution

The fourth proportional to 883.58, 1,323.95 and 623.70 is: 934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.58 : 1,323.95 = 623.70 : x
  2. Step 2: Convert to fraction form
    883.58/1,323.95 = 623.70/x
  3. Step 3: Cross multiply
    883.58x = 1,323.95 × 623.70
  4. Step 4: Simplify right side
    883.58x = 825,744.50
  5. Step 5: Solve for x
    x = 825,744.50/883.58
  6. Step 6: Final answer
    x = 934.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.