Home / 969,802.20-1,338,231.24-540,122.31

Finding the Fourth Proportional to 969,802.20, 1,338,231.24 and 540,122.31

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Solution

The fourth proportional to 969,802.20, 1,338,231.24 and 540,122.31 is: 745,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,802.20 : 1,338,231.24 = 540,122.31 : x
  2. Step 2: Convert to fraction form
    969,802.20/1,338,231.24 = 540,122.31/x
  3. Step 3: Cross multiply
    969,802.20x = 1,338,231.24 × 540,122.31
  4. Step 4: Simplify right side
    969,802.20x = 722,808,548,662.97
  5. Step 5: Solve for x
    x = 722,808,548,662.97/969,802.20
  6. Step 6: Final answer
    x = 745,315.44

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1.5x scale

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.