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Finding the Fourth Proportional to 572.84, 858 and 283.76

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Solution

The fourth proportional to 572.84, 858 and 283.76 is: 425.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.84 : 858 = 283.76 : x
  2. Step 2: Convert to fraction form
    572.84/858 = 283.76/x
  3. Step 3: Cross multiply
    572.84x = 858 × 283.76
  4. Step 4: Simplify right side
    572.84x = 243,466.08
  5. Step 5: Solve for x
    x = 243,466.08/572.84
  6. Step 6: Final answer
    x = 425.02

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