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Finding the Fourth Proportional to 434,401.30, 651,601.95 and 395,910.10

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Solution

The fourth proportional to 434,401.30, 651,601.95 and 395,910.10 is: 593,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,401.30 : 651,601.95 = 395,910.10 : x
  2. Step 2: Convert to fraction form
    434,401.30/651,601.95 = 395,910.10/x
  3. Step 3: Cross multiply
    434,401.30x = 651,601.95 × 395,910.10
  4. Step 4: Simplify right side
    434,401.30x = 257,975,793,184.70
  5. Step 5: Solve for x
    x = 257,975,793,184.70/434,401.30
  6. Step 6: Final answer
    x = 593,865.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.