Home / 3,128,869.86-4,694,037.09-969,782.13

Finding the Fourth Proportional to 3,128,869.86, 4,694,037.09 and 969,782.13

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Solution

The fourth proportional to 3,128,869.86, 4,694,037.09 and 969,782.13 is: 1,454,900.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,869.86 : 4,694,037.09 = 969,782.13 : x
  2. Step 2: Convert to fraction form
    3,128,869.86/4,694,037.09 = 969,782.13/x
  3. Step 3: Cross multiply
    3,128,869.86x = 4,694,037.09 × 969,782.13
  4. Step 4: Simplify right side
    3,128,869.86x = 4,552,193,291,075.89
  5. Step 5: Solve for x
    x = 4,552,193,291,075.89/3,128,869.86
  6. Step 6: Final answer
    x = 1,454,900.17

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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.