Home / 3,985,736.73-5,979,554.13-1,290,062.40

Finding the Fourth Proportional to 3,985,736.73, 5,979,554.13 and 1,290,062.40

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Solution

The fourth proportional to 3,985,736.73, 5,979,554.13 and 1,290,062.40 is: 1,935,400.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,736.73 : 5,979,554.13 = 1,290,062.40 : x
  2. Step 2: Convert to fraction form
    3,985,736.73/5,979,554.13 = 1,290,062.40/x
  3. Step 3: Cross multiply
    3,985,736.73x = 5,979,554.13 × 1,290,062.40
  4. Step 4: Simplify right side
    3,985,736.73x = 7,713,997,951,877.71
  5. Step 5: Solve for x
    x = 7,713,997,951,877.71/3,985,736.73
  6. Step 6: Final answer
    x = 1,935,400.77

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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.