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Finding the Fourth Proportional to 750.06, 1,034.98 and 455.32

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Solution

The fourth proportional to 750.06, 1,034.98 and 455.32 is: 628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.06 : 1,034.98 = 455.32 : x
  2. Step 2: Convert to fraction form
    750.06/1,034.98 = 455.32/x
  3. Step 3: Cross multiply
    750.06x = 1,034.98 × 455.32
  4. Step 4: Simplify right side
    750.06x = 471,247.25
  5. Step 5: Solve for x
    x = 471,247.25/750.06
  6. Step 6: Final answer
    x = 628.28

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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.