Home / 776.03-1,071.45-527.55

Finding the Fourth Proportional to 776.03, 1,071.45 and 527.55

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Solution

The fourth proportional to 776.03, 1,071.45 and 527.55 is: 728.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    776.03 : 1,071.45 = 527.55 : x
  2. Step 2: Convert to fraction form
    776.03/1,071.45 = 527.55/x
  3. Step 3: Cross multiply
    776.03x = 1,071.45 × 527.55
  4. Step 4: Simplify right side
    776.03x = 565,243.45
  5. Step 5: Solve for x
    x = 565,243.45/776.03
  6. Step 6: Final answer
    x = 728.38

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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.