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Finding the Fourth Proportional to 740.06, 1,110.78 and 375.10

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Solution

The fourth proportional to 740.06, 1,110.78 and 375.10 is: 563.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.06 : 1,110.78 = 375.10 : x
  2. Step 2: Convert to fraction form
    740.06/1,110.78 = 375.10/x
  3. Step 3: Cross multiply
    740.06x = 1,110.78 × 375.10
  4. Step 4: Simplify right side
    740.06x = 416,653.58
  5. Step 5: Solve for x
    x = 416,653.58/740.06
  6. Step 6: Final answer
    x = 563.00

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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.