Home / 492,390.45-737,621.57-438,834.46

Finding the Fourth Proportional to 492,390.45, 737,621.57 and 438,834.46

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Solution

The fourth proportional to 492,390.45, 737,621.57 and 438,834.46 is: 657,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,390.45 : 737,621.57 = 438,834.46 : x
  2. Step 2: Convert to fraction form
    492,390.45/737,621.57 = 438,834.46/x
  3. Step 3: Cross multiply
    492,390.45x = 737,621.57 × 438,834.46
  4. Step 4: Simplify right side
    492,390.45x = 323,693,763,355.30
  5. Step 5: Solve for x
    x = 323,693,763,355.30/492,390.45
  6. Step 6: Final answer
    x = 657,392.45

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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.