Home / 984,619.70-1,358,756.25-554,891.21

Finding the Fourth Proportional to 984,619.70, 1,358,756.25 and 554,891.21

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Solution

The fourth proportional to 984,619.70, 1,358,756.25 and 554,891.21 is: 765,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,619.70 : 1,358,756.25 = 554,891.21 : x
  2. Step 2: Convert to fraction form
    984,619.70/1,358,756.25 = 554,891.21/x
  3. Step 3: Cross multiply
    984,619.70x = 1,358,756.25 × 554,891.21
  4. Step 4: Simplify right side
    984,619.70x = 753,961,899,657.56
  5. Step 5: Solve for x
    x = 753,961,899,657.56/984,619.70
  6. Step 6: Final answer
    x = 765,739.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.