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Finding the Fourth Proportional to 573.39, 860.45 and 568.76

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Solution

The fourth proportional to 573.39, 860.45 and 568.76 is: 853.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.39 : 860.45 = 568.76 : x
  2. Step 2: Convert to fraction form
    573.39/860.45 = 568.76/x
  3. Step 3: Cross multiply
    573.39x = 860.45 × 568.76
  4. Step 4: Simplify right side
    573.39x = 489,382.40
  5. Step 5: Solve for x
    x = 489,382.40/573.39
  6. Step 6: Final answer
    x = 853.49

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Double scale
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1.5x scale

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.