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Finding the Fourth Proportional to 607.08, 915.24 and 511.56

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Solution

The fourth proportional to 607.08, 915.24 and 511.56 is: 771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.08 : 915.24 = 511.56 : x
  2. Step 2: Convert to fraction form
    607.08/915.24 = 511.56/x
  3. Step 3: Cross multiply
    607.08x = 915.24 × 511.56
  4. Step 4: Simplify right side
    607.08x = 468,200.17
  5. Step 5: Solve for x
    x = 468,200.17/607.08
  6. Step 6: Final answer
    x = 771.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.