Home / 1,145,578.77-1,580,856.62-636,313.95

Finding the Fourth Proportional to 1,145,578.77, 1,580,856.62 and 636,313.95

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Solution

The fourth proportional to 1,145,578.77, 1,580,856.62 and 636,313.95 is: 878,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,578.77 : 1,580,856.62 = 636,313.95 : x
  2. Step 2: Convert to fraction form
    1,145,578.77/1,580,856.62 = 636,313.95/x
  3. Step 3: Cross multiply
    1,145,578.77x = 1,580,856.62 × 636,313.95
  4. Step 4: Simplify right side
    1,145,578.77x = 1,005,921,117,074.28
  5. Step 5: Solve for x
    x = 1,005,921,117,074.28/1,145,578.77
  6. Step 6: Final answer
    x = 878,089.87

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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.