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Finding the Fourth Proportional to 566,404.66, 781,623.48 and 308,286.64

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Solution

The fourth proportional to 566,404.66, 781,623.48 and 308,286.64 is: 425,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,404.66 : 781,623.48 = 308,286.64 : x
  2. Step 2: Convert to fraction form
    566,404.66/781,623.48 = 308,286.64/x
  3. Step 3: Cross multiply
    566,404.66x = 781,623.48 × 308,286.64
  4. Step 4: Simplify right side
    566,404.66x = 240,964,076,394.31
  5. Step 5: Solve for x
    x = 240,964,076,394.31/566,404.66
  6. Step 6: Final answer
    x = 425,427.43

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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.