Home / 768,140.69-1,152,266.39-294,826.05

Finding the Fourth Proportional to 768,140.69, 1,152,266.39 and 294,826.05

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Solution

The fourth proportional to 768,140.69, 1,152,266.39 and 294,826.05 is: 442,260.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,140.69 : 1,152,266.39 = 294,826.05 : x
  2. Step 2: Convert to fraction form
    768,140.69/1,152,266.39 = 294,826.05/x
  3. Step 3: Cross multiply
    768,140.69x = 1,152,266.39 × 294,826.05
  4. Step 4: Simplify right side
    768,140.69x = 339,718,149,048.53
  5. Step 5: Solve for x
    x = 339,718,149,048.53/768,140.69
  6. Step 6: Final answer
    x = 442,260.32

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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.