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Finding the Fourth Proportional to 567,279.33, 782,831.03 and 309,162.91

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Solution

The fourth proportional to 567,279.33, 782,831.03 and 309,162.91 is: 426,636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,279.33 : 782,831.03 = 309,162.91 : x
  2. Step 2: Convert to fraction form
    567,279.33/782,831.03 = 309,162.91/x
  3. Step 3: Cross multiply
    567,279.33x = 782,831.03 × 309,162.91
  4. Step 4: Simplify right side
    567,279.33x = 242,022,318,088.93
  5. Step 5: Solve for x
    x = 242,022,318,088.93/567,279.33
  6. Step 6: Final answer
    x = 426,636.94

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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.