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Finding the Fourth Proportional to 740.02, 1,021.10 and 441.17

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Solution

The fourth proportional to 740.02, 1,021.10 and 441.17 is: 608.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.02 : 1,021.10 = 441.17 : x
  2. Step 2: Convert to fraction form
    740.02/1,021.10 = 441.17/x
  3. Step 3: Cross multiply
    740.02x = 1,021.10 × 441.17
  4. Step 4: Simplify right side
    740.02x = 450,482.34
  5. Step 5: Solve for x
    x = 450,482.34/740.02
  6. Step 6: Final answer
    x = 608.75

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Double scale
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1.5x scale

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.