Home / 1,950,498.86-2,690,511.44-1,288,214.78

Finding the Fourth Proportional to 1,950,498.86, 2,690,511.44 and 1,288,214.78

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Solution

The fourth proportional to 1,950,498.86, 2,690,511.44 and 1,288,214.78 is: 1,776,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950,498.86 : 2,690,511.44 = 1,288,214.78 : x
  2. Step 2: Convert to fraction form
    1,950,498.86/2,690,511.44 = 1,288,214.78/x
  3. Step 3: Cross multiply
    1,950,498.86x = 2,690,511.44 × 1,288,214.78
  4. Step 4: Simplify right side
    1,950,498.86x = 3,465,956,602,767.08
  5. Step 5: Solve for x
    x = 3,465,956,602,767.08/1,950,498.86
  6. Step 6: Final answer
    x = 1,776,959.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.