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Finding the Fourth Proportional to 434,937.20, 651,628.20 and 372,729.20

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Solution

The fourth proportional to 434,937.20, 651,628.20 and 372,729.20 is: 558,427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,937.20 : 651,628.20 = 372,729.20 : x
  2. Step 2: Convert to fraction form
    434,937.20/651,628.20 = 372,729.20/x
  3. Step 3: Cross multiply
    434,937.20x = 651,628.20 × 372,729.20
  4. Step 4: Simplify right side
    434,937.20x = 242,880,857,683.44
  5. Step 5: Solve for x
    x = 242,880,857,683.44/434,937.20
  6. Step 6: Final answer
    x = 558,427.42

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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.