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Finding the Fourth Proportional to 625,733.70, 863,459.36 and 353,763.85

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Solution

The fourth proportional to 625,733.70, 863,459.36 and 353,763.85 is: 488,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,733.70 : 863,459.36 = 353,763.85 : x
  2. Step 2: Convert to fraction form
    625,733.70/863,459.36 = 353,763.85/x
  3. Step 3: Cross multiply
    625,733.70x = 863,459.36 × 353,763.85
  4. Step 4: Simplify right side
    625,733.70x = 305,460,701,426.02
  5. Step 5: Solve for x
    x = 305,460,701,426.02/625,733.70
  6. Step 6: Final answer
    x = 488,164.06

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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.