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Finding the Fourth Proportional to 580.08, 870.48 and 486.48

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Solution

The fourth proportional to 580.08, 870.48 and 486.48 is: 730.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.08 : 870.48 = 486.48 : x
  2. Step 2: Convert to fraction form
    580.08/870.48 = 486.48/x
  3. Step 3: Cross multiply
    580.08x = 870.48 × 486.48
  4. Step 4: Simplify right side
    580.08x = 423,471.11
  5. Step 5: Solve for x
    x = 423,471.11/580.08
  6. Step 6: Final answer
    x = 730.02

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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.