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Finding the Fourth Proportional to 649.26, 973.72 and 284.32

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Solution

The fourth proportional to 649.26, 973.72 and 284.32 is: 426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.26 : 973.72 = 284.32 : x
  2. Step 2: Convert to fraction form
    649.26/973.72 = 284.32/x
  3. Step 3: Cross multiply
    649.26x = 973.72 × 284.32
  4. Step 4: Simplify right side
    649.26x = 276,848.07
  5. Step 5: Solve for x
    x = 276,848.07/649.26
  6. Step 6: Final answer
    x = 426.41

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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.