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Finding the Fourth Proportional to 706,540.31, 975,004.74 and 400,644.62

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Solution

The fourth proportional to 706,540.31, 975,004.74 and 400,644.62 is: 552,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,540.31 : 975,004.74 = 400,644.62 : x
  2. Step 2: Convert to fraction form
    706,540.31/975,004.74 = 400,644.62/x
  3. Step 3: Cross multiply
    706,540.31x = 975,004.74 × 400,644.62
  4. Step 4: Simplify right side
    706,540.31x = 390,630,398,680.48
  5. Step 5: Solve for x
    x = 390,630,398,680.48/706,540.31
  6. Step 6: Final answer
    x = 552,877.73

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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.