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Finding the Fourth Proportional to 577.80, 869.83 and 526.77

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Solution

The fourth proportional to 577.80, 869.83 and 526.77 is: 793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.80 : 869.83 = 526.77 : x
  2. Step 2: Convert to fraction form
    577.80/869.83 = 526.77/x
  3. Step 3: Cross multiply
    577.80x = 869.83 × 526.77
  4. Step 4: Simplify right side
    577.80x = 458,200.35
  5. Step 5: Solve for x
    x = 458,200.35/577.80
  6. Step 6: Final answer
    x = 793.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.