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Finding the Fourth Proportional to 595.75, 894.93 and 390.64

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Solution

The fourth proportional to 595.75, 894.93 and 390.64 is: 586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.75 : 894.93 = 390.64 : x
  2. Step 2: Convert to fraction form
    595.75/894.93 = 390.64/x
  3. Step 3: Cross multiply
    595.75x = 894.93 × 390.64
  4. Step 4: Simplify right side
    595.75x = 349,595.46
  5. Step 5: Solve for x
    x = 349,595.46/595.75
  6. Step 6: Final answer
    x = 586.82

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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.