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Finding the Fourth Proportional to 581.04, 869.88 and 529.68

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Solution

The fourth proportional to 581.04, 869.88 and 529.68 is: 792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.04 : 869.88 = 529.68 : x
  2. Step 2: Convert to fraction form
    581.04/869.88 = 529.68/x
  3. Step 3: Cross multiply
    581.04x = 869.88 × 529.68
  4. Step 4: Simplify right side
    581.04x = 460,758.04
  5. Step 5: Solve for x
    x = 460,758.04/581.04
  6. Step 6: Final answer
    x = 792.99

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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.