Home / 2,139,454.40-3,208,015.20-718,779.20

Finding the Fourth Proportional to 2,139,454.40, 3,208,015.20 and 718,779.20

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Solution

The fourth proportional to 2,139,454.40, 3,208,015.20 and 718,779.20 is: 1,077,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,454.40 : 3,208,015.20 = 718,779.20 : x
  2. Step 2: Convert to fraction form
    2,139,454.40/3,208,015.20 = 718,779.20/x
  3. Step 3: Cross multiply
    2,139,454.40x = 3,208,015.20 × 718,779.20
  4. Step 4: Simplify right side
    2,139,454.40x = 2,305,854,599,043.84
  5. Step 5: Solve for x
    x = 2,305,854,599,043.84/2,139,454.40
  6. Step 6: Final answer
    x = 1,077,776.93

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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.