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Finding the Fourth Proportional to 607.50, 912.06 and 521.37

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Solution

The fourth proportional to 607.50, 912.06 and 521.37 is: 782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.50 : 912.06 = 521.37 : x
  2. Step 2: Convert to fraction form
    607.50/912.06 = 521.37/x
  3. Step 3: Cross multiply
    607.50x = 912.06 × 521.37
  4. Step 4: Simplify right side
    607.50x = 475,520.72
  5. Step 5: Solve for x
    x = 475,520.72/607.50
  6. Step 6: Final answer
    x = 782.75

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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.