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Finding the Fourth Proportional to 700,188.52, 966,265.88 and 398,401.96

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Solution

The fourth proportional to 700,188.52, 966,265.88 and 398,401.96 is: 549,797.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,188.52 : 966,265.88 = 398,401.96 : x
  2. Step 2: Convert to fraction form
    700,188.52/966,265.88 = 398,401.96/x
  3. Step 3: Cross multiply
    700,188.52x = 966,265.88 × 398,401.96
  4. Step 4: Simplify right side
    700,188.52x = 384,962,220,473.13
  5. Step 5: Solve for x
    x = 384,962,220,473.13/700,188.52
  6. Step 6: Final answer
    x = 549,797.96

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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.