Home / 3,121,434.92-4,678,959.81-1,581,577.79

Finding the Fourth Proportional to 3,121,434.92, 4,678,959.81 and 1,581,577.79

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Solution

The fourth proportional to 3,121,434.92, 4,678,959.81 and 1,581,577.79 is: 2,370,749.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,434.92 : 4,678,959.81 = 1,581,577.79 : x
  2. Step 2: Convert to fraction form
    3,121,434.92/4,678,959.81 = 1,581,577.79/x
  3. Step 3: Cross multiply
    3,121,434.92x = 4,678,959.81 × 1,581,577.79
  4. Step 4: Simplify right side
    3,121,434.92x = 7,400,138,892,403.82
  5. Step 5: Solve for x
    x = 7,400,138,892,403.82/3,121,434.92
  6. Step 6: Final answer
    x = 2,370,749.06

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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.