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Finding the Fourth Proportional to 568,054.40, 852,081.60 and 287,535.20

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Solution

The fourth proportional to 568,054.40, 852,081.60 and 287,535.20 is: 431,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,054.40 : 852,081.60 = 287,535.20 : x
  2. Step 2: Convert to fraction form
    568,054.40/852,081.60 = 287,535.20/x
  3. Step 3: Cross multiply
    568,054.40x = 852,081.60 × 287,535.20
  4. Step 4: Simplify right side
    568,054.40x = 245,003,453,272.32
  5. Step 5: Solve for x
    x = 245,003,453,272.32/568,054.40
  6. Step 6: Final answer
    x = 431,302.80

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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.