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Finding the Fourth Proportional to 567,416.37, 783,011.01 and 309,287.64

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Solution

The fourth proportional to 567,416.37, 783,011.01 and 309,287.64 is: 426,804.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,416.37 : 783,011.01 = 309,287.64 : x
  2. Step 2: Convert to fraction form
    567,416.37/783,011.01 = 309,287.64/x
  3. Step 3: Cross multiply
    567,416.37x = 783,011.01 × 309,287.64
  4. Step 4: Simplify right side
    567,416.37x = 242,175,625,830.48
  5. Step 5: Solve for x
    x = 242,175,625,830.48/567,416.37
  6. Step 6: Final answer
    x = 426,804.09

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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.