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Finding the Fourth Proportional to 626,328.14, 864,556.98 and 371,679.32

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Solution

The fourth proportional to 626,328.14, 864,556.98 and 371,679.32 is: 513,050.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,328.14 : 864,556.98 = 371,679.32 : x
  2. Step 2: Convert to fraction form
    626,328.14/864,556.98 = 371,679.32/x
  3. Step 3: Cross multiply
    626,328.14x = 864,556.98 × 371,679.32
  4. Step 4: Simplify right side
    626,328.14x = 321,337,950,427.65
  5. Step 5: Solve for x
    x = 321,337,950,427.65/626,328.14
  6. Step 6: Final answer
    x = 513,050.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.