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Finding the Fourth Proportional to 599.23, 898.71 and 390.93

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Solution

The fourth proportional to 599.23, 898.71 and 390.93 is: 586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.23 : 898.71 = 390.93 : x
  2. Step 2: Convert to fraction form
    599.23/898.71 = 390.93/x
  3. Step 3: Cross multiply
    599.23x = 898.71 × 390.93
  4. Step 4: Simplify right side
    599.23x = 351,332.70
  5. Step 5: Solve for x
    x = 351,332.70/599.23
  6. Step 6: Final answer
    x = 586.31

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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.