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Finding the Fourth Proportional to 903.14, 1,246.46 and 655.28

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Solution

The fourth proportional to 903.14, 1,246.46 and 655.28 is: 904.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.14 : 1,246.46 = 655.28 : x
  2. Step 2: Convert to fraction form
    903.14/1,246.46 = 655.28/x
  3. Step 3: Cross multiply
    903.14x = 1,246.46 × 655.28
  4. Step 4: Simplify right side
    903.14x = 816,780.31
  5. Step 5: Solve for x
    x = 816,780.31/903.14
  6. Step 6: Final answer
    x = 904.38

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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.