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Finding the Fourth Proportional to 583.96, 874.88 and 339.74

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Solution

The fourth proportional to 583.96, 874.88 and 339.74 is: 509.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.96 : 874.88 = 339.74 : x
  2. Step 2: Convert to fraction form
    583.96/874.88 = 339.74/x
  3. Step 3: Cross multiply
    583.96x = 874.88 × 339.74
  4. Step 4: Simplify right side
    583.96x = 297,234.18
  5. Step 5: Solve for x
    x = 297,234.18/583.96
  6. Step 6: Final answer
    x = 509.00

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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.