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Finding the Fourth Proportional to 583.90, 879.86 and 483.45

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Solution

The fourth proportional to 583.90, 879.86 and 483.45 is: 728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.90 : 879.86 = 483.45 : x
  2. Step 2: Convert to fraction form
    583.90/879.86 = 483.45/x
  3. Step 3: Cross multiply
    583.90x = 879.86 × 483.45
  4. Step 4: Simplify right side
    583.90x = 425,362.71
  5. Step 5: Solve for x
    x = 425,362.71/583.90
  6. Step 6: Final answer
    x = 728.49

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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.