Home / 528,578.20-792,165.30-288,074.62

Finding the Fourth Proportional to 528,578.20, 792,165.30 and 288,074.62

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Solution

The fourth proportional to 528,578.20, 792,165.30 and 288,074.62 is: 431,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,578.20 : 792,165.30 = 288,074.62 : x
  2. Step 2: Convert to fraction form
    528,578.20/792,165.30 = 288,074.62/x
  3. Step 3: Cross multiply
    528,578.20x = 792,165.30 × 288,074.62
  4. Step 4: Simplify right side
    528,578.20x = 228,202,717,774.69
  5. Step 5: Solve for x
    x = 228,202,717,774.69/528,578.20
  6. Step 6: Final answer
    x = 431,729.34

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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.