Home / 1,068,809.40-1,604,121.30-438,175.80

Finding the Fourth Proportional to 1,068,809.40, 1,604,121.30 and 438,175.80

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Solution

The fourth proportional to 1,068,809.40, 1,604,121.30 and 438,175.80 is: 657,635.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,809.40 : 1,604,121.30 = 438,175.80 : x
  2. Step 2: Convert to fraction form
    1,068,809.40/1,604,121.30 = 438,175.80/x
  3. Step 3: Cross multiply
    1,068,809.40x = 1,604,121.30 × 438,175.80
  4. Step 4: Simplify right side
    1,068,809.40x = 702,887,133,924.54
  5. Step 5: Solve for x
    x = 702,887,133,924.54/1,068,809.40
  6. Step 6: Final answer
    x = 657,635.62

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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.