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Finding the Fourth Proportional to 556,556.87, 768,048.73 and 314,834.29

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Solution

The fourth proportional to 556,556.87, 768,048.73 and 314,834.29 is: 434,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,556.87 : 768,048.73 = 314,834.29 : x
  2. Step 2: Convert to fraction form
    556,556.87/768,048.73 = 314,834.29/x
  3. Step 3: Cross multiply
    556,556.87x = 768,048.73 × 314,834.29
  4. Step 4: Simplify right side
    556,556.87x = 241,808,079,978.96
  5. Step 5: Solve for x
    x = 241,808,079,978.96/556,556.87
  6. Step 6: Final answer
    x = 434,471.47

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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.