Home / 1,344,123.20-2,016,141.60-445,606.40

Finding the Fourth Proportional to 1,344,123.20, 2,016,141.60 and 445,606.40

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Solution

The fourth proportional to 1,344,123.20, 2,016,141.60 and 445,606.40 is: 668,395.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,123.20 : 2,016,141.60 = 445,606.40 : x
  2. Step 2: Convert to fraction form
    1,344,123.20/2,016,141.60 = 445,606.40/x
  3. Step 3: Cross multiply
    1,344,123.20x = 2,016,141.60 × 445,606.40
  4. Step 4: Simplify right side
    1,344,123.20x = 898,405,600,266.24
  5. Step 5: Solve for x
    x = 898,405,600,266.24/1,344,123.20
  6. Step 6: Final answer
    x = 668,395.28

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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.