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Finding the Fourth Proportional to 528,105.08, 790,865.71 and 476,929.28

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Solution

The fourth proportional to 528,105.08, 790,865.71 and 476,929.28 is: 714,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,105.08 : 790,865.71 = 476,929.28 : x
  2. Step 2: Convert to fraction form
    528,105.08/790,865.71 = 476,929.28/x
  3. Step 3: Cross multiply
    528,105.08x = 790,865.71 × 476,929.28
  4. Step 4: Simplify right side
    528,105.08x = 377,187,008,500.34
  5. Step 5: Solve for x
    x = 377,187,008,500.34/528,105.08
  6. Step 6: Final answer
    x = 714,227.20

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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.