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Finding the Fourth Proportional to 528,105.58, 790,866.46 and 476,929.78

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Solution

The fourth proportional to 528,105.58, 790,866.46 and 476,929.78 is: 714,227.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,105.58 : 790,866.46 = 476,929.78 : x
  2. Step 2: Convert to fraction form
    528,105.58/790,866.46 = 476,929.78/x
  3. Step 3: Cross multiply
    528,105.58x = 790,866.46 × 476,929.78
  4. Step 4: Simplify right side
    528,105.58x = 377,187,760,438.20
  5. Step 5: Solve for x
    x = 377,187,760,438.20/528,105.58
  6. Step 6: Final answer
    x = 714,227.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.