Home / 1,428,560.46-1,970,852.22-816,384.80

Finding the Fourth Proportional to 1,428,560.46, 1,970,852.22 and 816,384.80

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Solution

The fourth proportional to 1,428,560.46, 1,970,852.22 and 816,384.80 is: 1,126,290.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,560.46 : 1,970,852.22 = 816,384.80 : x
  2. Step 2: Convert to fraction form
    1,428,560.46/1,970,852.22 = 816,384.80/x
  3. Step 3: Cross multiply
    1,428,560.46x = 1,970,852.22 × 816,384.80
  4. Step 4: Simplify right side
    1,428,560.46x = 1,608,973,800,381.39
  5. Step 5: Solve for x
    x = 1,608,973,800,381.39/1,428,560.46
  6. Step 6: Final answer
    x = 1,126,290.31

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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.