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Finding the Fourth Proportional to 567,265.61, 782,816.09 and 309,144.65

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Solution

The fourth proportional to 567,265.61, 782,816.09 and 309,144.65 is: 426,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,265.61 : 782,816.09 = 309,144.65 : x
  2. Step 2: Convert to fraction form
    567,265.61/782,816.09 = 309,144.65/x
  3. Step 3: Cross multiply
    567,265.61x = 782,816.09 × 309,144.65
  4. Step 4: Simplify right side
    567,265.61x = 242,003,400,697.62
  5. Step 5: Solve for x
    x = 242,003,400,697.62/567,265.61
  6. Step 6: Final answer
    x = 426,613.91

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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.