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Finding the Fourth Proportional to 601.04, 900.91 and 392.55

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Solution

The fourth proportional to 601.04, 900.91 and 392.55 is: 588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.04 : 900.91 = 392.55 : x
  2. Step 2: Convert to fraction form
    601.04/900.91 = 392.55/x
  3. Step 3: Cross multiply
    601.04x = 900.91 × 392.55
  4. Step 4: Simplify right side
    601.04x = 353,652.19
  5. Step 5: Solve for x
    x = 353,652.19/601.04
  6. Step 6: Final answer
    x = 588.40

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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.