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Finding the Fourth Proportional to 740.69, 1,022.15 and 544.57

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Solution

The fourth proportional to 740.69, 1,022.15 and 544.57 is: 751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.69 : 1,022.15 = 544.57 : x
  2. Step 2: Convert to fraction form
    740.69/1,022.15 = 544.57/x
  3. Step 3: Cross multiply
    740.69x = 1,022.15 × 544.57
  4. Step 4: Simplify right side
    740.69x = 556,632.23
  5. Step 5: Solve for x
    x = 556,632.23/740.69
  6. Step 6: Final answer
    x = 751.50

Related Problems

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Half scale
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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.