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Finding the Fourth Proportional to 807,697.50, 1,211,543 and 302,296.38

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Solution

The fourth proportional to 807,697.50, 1,211,543 and 302,296.38 is: 453,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,697.50 : 1,211,543 = 302,296.38 : x
  2. Step 2: Convert to fraction form
    807,697.50/1,211,543 = 302,296.38/x
  3. Step 3: Cross multiply
    807,697.50x = 1,211,543 × 302,296.38
  4. Step 4: Simplify right side
    807,697.50x = 366,245,063,114.34
  5. Step 5: Solve for x
    x = 366,245,063,114.34/807,697.50
  6. Step 6: Final answer
    x = 453,443.35

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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.