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Finding the Fourth Proportional to 528,333.28, 729,099.93 and 301,983.64

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Solution

The fourth proportional to 528,333.28, 729,099.93 and 301,983.64 is: 416,737.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,333.28 : 729,099.93 = 301,983.64 : x
  2. Step 2: Convert to fraction form
    528,333.28/729,099.93 = 301,983.64/x
  3. Step 3: Cross multiply
    528,333.28x = 729,099.93 × 301,983.64
  4. Step 4: Simplify right side
    528,333.28x = 220,176,250,785.15
  5. Step 5: Solve for x
    x = 220,176,250,785.15/528,333.28
  6. Step 6: Final answer
    x = 416,737.43

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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.