Home / 1,918,669.85-2,876,486.49-720,458.72

Finding the Fourth Proportional to 1,918,669.85, 2,876,486.49 and 720,458.72

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Solution

The fourth proportional to 1,918,669.85, 2,876,486.49 and 720,458.72 is: 1,080,117.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,669.85 : 2,876,486.49 = 720,458.72 : x
  2. Step 2: Convert to fraction form
    1,918,669.85/2,876,486.49 = 720,458.72/x
  3. Step 3: Cross multiply
    1,918,669.85x = 2,876,486.49 × 720,458.72
  4. Step 4: Simplify right side
    1,918,669.85x = 2,072,389,774,682.69
  5. Step 5: Solve for x
    x = 2,072,389,774,682.69/1,918,669.85
  6. Step 6: Final answer
    x = 1,080,117.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.