Home / 1,105,139.20-1,653,561.60-1,005,606.40

Finding the Fourth Proportional to 1,105,139.20, 1,653,561.60 and 1,005,606.40

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Solution

The fourth proportional to 1,105,139.20, 1,653,561.60 and 1,005,606.40 is: 1,504,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,139.20 : 1,653,561.60 = 1,005,606.40 : x
  2. Step 2: Convert to fraction form
    1,105,139.20/1,653,561.60 = 1,005,606.40/x
  3. Step 3: Cross multiply
    1,105,139.20x = 1,653,561.60 × 1,005,606.40
  4. Step 4: Simplify right side
    1,105,139.20x = 1,662,832,127,754.24
  5. Step 5: Solve for x
    x = 1,662,832,127,754.24/1,105,139.20
  6. Step 6: Final answer
    x = 1,504,635.91

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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.