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Finding the Fourth Proportional to 492,308.70, 738,017.55 and 342,620.70

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Solution

The fourth proportional to 492,308.70, 738,017.55 and 342,620.70 is: 513,621.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,308.70 : 738,017.55 = 342,620.70 : x
  2. Step 2: Convert to fraction form
    492,308.70/738,017.55 = 342,620.70/x
  3. Step 3: Cross multiply
    492,308.70x = 738,017.55 × 342,620.70
  4. Step 4: Simplify right side
    492,308.70x = 252,860,089,593.29
  5. Step 5: Solve for x
    x = 252,860,089,593.29/492,308.70
  6. Step 6: Final answer
    x = 513,621.01

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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.