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Finding the Fourth Proportional to 740.01, 1,107.97 and 373.01

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Solution

The fourth proportional to 740.01, 1,107.97 and 373.01 is: 558.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.01 : 1,107.97 = 373.01 : x
  2. Step 2: Convert to fraction form
    740.01/1,107.97 = 373.01/x
  3. Step 3: Cross multiply
    740.01x = 1,107.97 × 373.01
  4. Step 4: Simplify right side
    740.01x = 413,276.89
  5. Step 5: Solve for x
    x = 413,276.89/740.01
  6. Step 6: Final answer
    x = 558.47

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Double scale
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1.5x scale

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.