Home / 1,320,004.40-1,980,006.60-322,732.40

Finding the Fourth Proportional to 1,320,004.40, 1,980,006.60 and 322,732.40

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Solution

The fourth proportional to 1,320,004.40, 1,980,006.60 and 322,732.40 is: 484,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,004.40 : 1,980,006.60 = 322,732.40 : x
  2. Step 2: Convert to fraction form
    1,320,004.40/1,980,006.60 = 322,732.40/x
  3. Step 3: Cross multiply
    1,320,004.40x = 1,980,006.60 × 322,732.40
  4. Step 4: Simplify right side
    1,320,004.40x = 639,012,282,033.84
  5. Step 5: Solve for x
    x = 639,012,282,033.84/1,320,004.40
  6. Step 6: Final answer
    x = 484,098.60

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Similar ratio
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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.