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Finding the Fourth Proportional to 616.08, 848.40 and 603.92

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Solution

The fourth proportional to 616.08, 848.40 and 603.92 is: 831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.08 : 848.40 = 603.92 : x
  2. Step 2: Convert to fraction form
    616.08/848.40 = 603.92/x
  3. Step 3: Cross multiply
    616.08x = 848.40 × 603.92
  4. Step 4: Simplify right side
    616.08x = 512,365.73
  5. Step 5: Solve for x
    x = 512,365.73/616.08
  6. Step 6: Final answer
    x = 831.65

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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.