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Finding the Fourth Proportional to 679,630.08, 937,909.92 and 373,690.64

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Solution

The fourth proportional to 679,630.08, 937,909.92 and 373,690.64 is: 515,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,630.08 : 937,909.92 = 373,690.64 : x
  2. Step 2: Convert to fraction form
    679,630.08/937,909.92 = 373,690.64/x
  3. Step 3: Cross multiply
    679,630.08x = 937,909.92 × 373,690.64
  4. Step 4: Simplify right side
    679,630.08x = 350,488,158,267.15
  5. Step 5: Solve for x
    x = 350,488,158,267.15/679,630.08
  6. Step 6: Final answer
    x = 515,704.31

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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.