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Finding the Fourth Proportional to 583.60, 870.29 and 549.52

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Solution

The fourth proportional to 583.60, 870.29 and 549.52 is: 819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.60 : 870.29 = 549.52 : x
  2. Step 2: Convert to fraction form
    583.60/870.29 = 549.52/x
  3. Step 3: Cross multiply
    583.60x = 870.29 × 549.52
  4. Step 4: Simplify right side
    583.60x = 478,241.76
  5. Step 5: Solve for x
    x = 478,241.76/583.60
  6. Step 6: Final answer
    x = 819.47

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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.