Home / 760,516.20-1,140,833.70-339,834.60

Finding the Fourth Proportional to 760,516.20, 1,140,833.70 and 339,834.60

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Solution

The fourth proportional to 760,516.20, 1,140,833.70 and 339,834.60 is: 509,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,516.20 : 1,140,833.70 = 339,834.60 : x
  2. Step 2: Convert to fraction form
    760,516.20/1,140,833.70 = 339,834.60/x
  3. Step 3: Cross multiply
    760,516.20x = 1,140,833.70 × 339,834.60
  4. Step 4: Simplify right side
    760,516.20x = 387,694,764,106.02
  5. Step 5: Solve for x
    x = 387,694,764,106.02/760,516.20
  6. Step 6: Final answer
    x = 509,778.44

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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.