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Finding the Fourth Proportional to 434,679.30, 651,144.15 and 301,709.70

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Solution

The fourth proportional to 434,679.30, 651,144.15 and 301,709.70 is: 451,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,679.30 : 651,144.15 = 301,709.70 : x
  2. Step 2: Convert to fraction form
    434,679.30/651,144.15 = 301,709.70/x
  3. Step 3: Cross multiply
    434,679.30x = 651,144.15 × 301,709.70
  4. Step 4: Simplify right side
    434,679.30x = 196,456,506,153.26
  5. Step 5: Solve for x
    x = 196,456,506,153.26/434,679.30
  6. Step 6: Final answer
    x = 451,957.35

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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.