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Finding the Fourth Proportional to 483,441.80, 725,162.70 and 429,528.20

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Solution

The fourth proportional to 483,441.80, 725,162.70 and 429,528.20 is: 644,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,441.80 : 725,162.70 = 429,528.20 : x
  2. Step 2: Convert to fraction form
    483,441.80/725,162.70 = 429,528.20/x
  3. Step 3: Cross multiply
    483,441.80x = 725,162.70 × 429,528.20
  4. Step 4: Simplify right side
    483,441.80x = 311,477,829,238.14
  5. Step 5: Solve for x
    x = 311,477,829,238.14/483,441.80
  6. Step 6: Final answer
    x = 644,292.30

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Similar ratio
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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.