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Finding the Fourth Proportional to 568,402.45, 784,393.77 and 313,751.81

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Solution

The fourth proportional to 568,402.45, 784,393.77 and 313,751.81 is: 432,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,402.45 : 784,393.77 = 313,751.81 : x
  2. Step 2: Convert to fraction form
    568,402.45/784,393.77 = 313,751.81/x
  3. Step 3: Cross multiply
    568,402.45x = 784,393.77 × 313,751.81
  4. Step 4: Simplify right side
    568,402.45x = 246,104,968,227.78
  5. Step 5: Solve for x
    x = 246,104,968,227.78/568,402.45
  6. Step 6: Final answer
    x = 432,976.62

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1.5x scale

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.