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Finding the Fourth Proportional to 604.07, 831.51 and 526.31

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Solution

The fourth proportional to 604.07, 831.51 and 526.31 is: 724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.07 : 831.51 = 526.31 : x
  2. Step 2: Convert to fraction form
    604.07/831.51 = 526.31/x
  3. Step 3: Cross multiply
    604.07x = 831.51 × 526.31
  4. Step 4: Simplify right side
    604.07x = 437,632.03
  5. Step 5: Solve for x
    x = 437,632.03/604.07
  6. Step 6: Final answer
    x = 724.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.