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Finding the Fourth Proportional to 944.59, 1,303.08 and 551.38

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Solution

The fourth proportional to 944.59, 1,303.08 and 551.38 is: 760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.59 : 1,303.08 = 551.38 : x
  2. Step 2: Convert to fraction form
    944.59/1,303.08 = 551.38/x
  3. Step 3: Cross multiply
    944.59x = 1,303.08 × 551.38
  4. Step 4: Simplify right side
    944.59x = 718,492.25
  5. Step 5: Solve for x
    x = 718,492.25/944.59
  6. Step 6: Final answer
    x = 760.64

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Double scale
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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.