Home / 783,370.26-1,174,989.78-309,928.50

Finding the Fourth Proportional to 783,370.26, 1,174,989.78 and 309,928.50

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Solution

The fourth proportional to 783,370.26, 1,174,989.78 and 309,928.50 is: 464,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,370.26 : 1,174,989.78 = 309,928.50 : x
  2. Step 2: Convert to fraction form
    783,370.26/1,174,989.78 = 309,928.50/x
  3. Step 3: Cross multiply
    783,370.26x = 1,174,989.78 × 309,928.50
  4. Step 4: Simplify right side
    783,370.26x = 364,162,820,030.73
  5. Step 5: Solve for x
    x = 364,162,820,030.73/783,370.26
  6. Step 6: Final answer
    x = 464,866.79

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1.5x scale

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.