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Finding the Fourth Proportional to 583.02, 879.71 and 561.67

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Solution

The fourth proportional to 583.02, 879.71 and 561.67 is: 847.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.02 : 879.71 = 561.67 : x
  2. Step 2: Convert to fraction form
    583.02/879.71 = 561.67/x
  3. Step 3: Cross multiply
    583.02x = 879.71 × 561.67
  4. Step 4: Simplify right side
    583.02x = 494,101.71
  5. Step 5: Solve for x
    x = 494,101.71/583.02
  6. Step 6: Final answer
    x = 847.49

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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.