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Finding the Fourth Proportional to 566,484.15, 781,765.73 and 308,378.28

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Solution

The fourth proportional to 566,484.15, 781,765.73 and 308,378.28 is: 425,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,484.15 : 781,765.73 = 308,378.28 : x
  2. Step 2: Convert to fraction form
    566,484.15/781,765.73 = 308,378.28/x
  3. Step 3: Cross multiply
    566,484.15x = 781,765.73 × 308,378.28
  4. Step 4: Simplify right side
    566,484.15x = 241,079,565,729.62
  5. Step 5: Solve for x
    x = 241,079,565,729.62/566,484.15
  6. Step 6: Final answer
    x = 425,571.60

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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.