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Finding the Fourth Proportional to 469.17, 702.63 and 436.32

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Solution

The fourth proportional to 469.17, 702.63 and 436.32 is: 653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.17 : 702.63 = 436.32 : x
  2. Step 2: Convert to fraction form
    469.17/702.63 = 436.32/x
  3. Step 3: Cross multiply
    469.17x = 702.63 × 436.32
  4. Step 4: Simplify right side
    469.17x = 306,571.52
  5. Step 5: Solve for x
    x = 306,571.52/469.17
  6. Step 6: Final answer
    x = 653.43

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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.