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Finding the Fourth Proportional to 568,329.69, 784,291.05 and 313,680.87

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Solution

The fourth proportional to 568,329.69, 784,291.05 and 313,680.87 is: 432,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,329.69 : 784,291.05 = 313,680.87 : x
  2. Step 2: Convert to fraction form
    568,329.69/784,291.05 = 313,680.87/x
  3. Step 3: Cross multiply
    568,329.69x = 784,291.05 × 313,680.87
  4. Step 4: Simplify right side
    568,329.69x = 246,017,098,897.21
  5. Step 5: Solve for x
    x = 246,017,098,897.21/568,329.69
  6. Step 6: Final answer
    x = 432,877.44

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Double scale
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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.