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Finding the Fourth Proportional to 555.04, 761.15 and 526.96

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Solution

The fourth proportional to 555.04, 761.15 and 526.96 is: 722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.04 : 761.15 = 526.96 : x
  2. Step 2: Convert to fraction form
    555.04/761.15 = 526.96/x
  3. Step 3: Cross multiply
    555.04x = 761.15 × 526.96
  4. Step 4: Simplify right side
    555.04x = 401,095.60
  5. Step 5: Solve for x
    x = 401,095.60/555.04
  6. Step 6: Final answer
    x = 722.64

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.