Home / 1,047.32-1,569.96-499.36

Finding the Fourth Proportional to 1,047.32, 1,569.96 and 499.36

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Solution

The fourth proportional to 1,047.32, 1,569.96 and 499.36 is: 748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.32 : 1,569.96 = 499.36 : x
  2. Step 2: Convert to fraction form
    1,047.32/1,569.96 = 499.36/x
  3. Step 3: Cross multiply
    1,047.32x = 1,569.96 × 499.36
  4. Step 4: Simplify right side
    1,047.32x = 783,975.23
  5. Step 5: Solve for x
    x = 783,975.23/1,047.32
  6. Step 6: Final answer
    x = 748.55

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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.