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Finding the Fourth Proportional to 580.79, 875.21 and 526.11

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Solution

The fourth proportional to 580.79, 875.21 and 526.11 is: 792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.79 : 875.21 = 526.11 : x
  2. Step 2: Convert to fraction form
    580.79/875.21 = 526.11/x
  3. Step 3: Cross multiply
    580.79x = 875.21 × 526.11
  4. Step 4: Simplify right side
    580.79x = 460,454.10
  5. Step 5: Solve for x
    x = 460,454.10/580.79
  6. Step 6: Final answer
    x = 792.81

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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.