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Finding the Fourth Proportional to 738.64, 1,018.96 and 598.48

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Solution

The fourth proportional to 738.64, 1,018.96 and 598.48 is: 825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.64 : 1,018.96 = 598.48 : x
  2. Step 2: Convert to fraction form
    738.64/1,018.96 = 598.48/x
  3. Step 3: Cross multiply
    738.64x = 1,018.96 × 598.48
  4. Step 4: Simplify right side
    738.64x = 609,827.18
  5. Step 5: Solve for x
    x = 609,827.18/738.64
  6. Step 6: Final answer
    x = 825.61

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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.