Home / 1,031.36-1,547.04-300.96

Finding the Fourth Proportional to 1,031.36, 1,547.04 and 300.96

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Solution

The fourth proportional to 1,031.36, 1,547.04 and 300.96 is: 451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.36 : 1,547.04 = 300.96 : x
  2. Step 2: Convert to fraction form
    1,031.36/1,547.04 = 300.96/x
  3. Step 3: Cross multiply
    1,031.36x = 1,547.04 × 300.96
  4. Step 4: Simplify right side
    1,031.36x = 465,597.16
  5. Step 5: Solve for x
    x = 465,597.16/1,031.36
  6. Step 6: Final answer
    x = 451.44

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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.