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Finding the Fourth Proportional to 583.24, 870.17 and 555.72

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Solution

The fourth proportional to 583.24, 870.17 and 555.72 is: 829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.24 : 870.17 = 555.72 : x
  2. Step 2: Convert to fraction form
    583.24/870.17 = 555.72/x
  3. Step 3: Cross multiply
    583.24x = 870.17 × 555.72
  4. Step 4: Simplify right side
    583.24x = 483,570.87
  5. Step 5: Solve for x
    x = 483,570.87/583.24
  6. Step 6: Final answer
    x = 829.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.