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Finding the Fourth Proportional to 572.79, 854.70 and 498.99

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Solution

The fourth proportional to 572.79, 854.70 and 498.99 is: 744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.79 : 854.70 = 498.99 : x
  2. Step 2: Convert to fraction form
    572.79/854.70 = 498.99/x
  3. Step 3: Cross multiply
    572.79x = 854.70 × 498.99
  4. Step 4: Simplify right side
    572.79x = 426,486.75
  5. Step 5: Solve for x
    x = 426,486.75/572.79
  6. Step 6: Final answer
    x = 744.58

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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.