Home / 1,010.17-1,515.44-433.45

Finding the Fourth Proportional to 1,010.17, 1,515.44 and 433.45

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Solution

The fourth proportional to 1,010.17, 1,515.44 and 433.45 is: 650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.17 : 1,515.44 = 433.45 : x
  2. Step 2: Convert to fraction form
    1,010.17/1,515.44 = 433.45/x
  3. Step 3: Cross multiply
    1,010.17x = 1,515.44 × 433.45
  4. Step 4: Simplify right side
    1,010.17x = 656,867.47
  5. Step 5: Solve for x
    x = 656,867.47/1,010.17
  6. Step 6: Final answer
    x = 650.25

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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.