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Finding the Fourth Proportional to 568,064.70, 783,998.72 and 326,346.81

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Solution

The fourth proportional to 568,064.70, 783,998.72 and 326,346.81 is: 450,398.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,064.70 : 783,998.72 = 326,346.81 : x
  2. Step 2: Convert to fraction form
    568,064.70/783,998.72 = 326,346.81/x
  3. Step 3: Cross multiply
    568,064.70x = 783,998.72 × 326,346.81
  4. Step 4: Simplify right side
    568,064.70x = 255,855,479,684.35
  5. Step 5: Solve for x
    x = 255,855,479,684.35/568,064.70
  6. Step 6: Final answer
    x = 450,398.48

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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.