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Finding the Fourth Proportional to 802,928, 1,108,040.64 and 445,232

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Solution

The fourth proportional to 802,928, 1,108,040.64 and 445,232 is: 614,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,928 : 1,108,040.64 = 445,232 : x
  2. Step 2: Convert to fraction form
    802,928/1,108,040.64 = 445,232/x
  3. Step 3: Cross multiply
    802,928x = 1,108,040.64 × 445,232
  4. Step 4: Simplify right side
    802,928x = 493,335,150,228.48
  5. Step 5: Solve for x
    x = 493,335,150,228.48/802,928
  6. Step 6: Final answer
    x = 614,420.16

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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.