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Finding the Fourth Proportional to 903.54, 1,246.75 and 510.56

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Solution

The fourth proportional to 903.54, 1,246.75 and 510.56 is: 704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.54 : 1,246.75 = 510.56 : x
  2. Step 2: Convert to fraction form
    903.54/1,246.75 = 510.56/x
  3. Step 3: Cross multiply
    903.54x = 1,246.75 × 510.56
  4. Step 4: Simplify right side
    903.54x = 636,540.68
  5. Step 5: Solve for x
    x = 636,540.68/903.54
  6. Step 6: Final answer
    x = 704.50

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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.