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Finding the Fourth Proportional to 583.78, 879.67 and 483.32

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Solution

The fourth proportional to 583.78, 879.67 and 483.32 is: 728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.78 : 879.67 = 483.32 : x
  2. Step 2: Convert to fraction form
    583.78/879.67 = 483.32/x
  3. Step 3: Cross multiply
    583.78x = 879.67 × 483.32
  4. Step 4: Simplify right side
    583.78x = 425,157.71
  5. Step 5: Solve for x
    x = 425,157.71/583.78
  6. Step 6: Final answer
    x = 728.28

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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.