Home / 1,314,025.20-1,971,037.80-865,252.80

Finding the Fourth Proportional to 1,314,025.20, 1,971,037.80 and 865,252.80

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Solution

The fourth proportional to 1,314,025.20, 1,971,037.80 and 865,252.80 is: 1,297,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,025.20 : 1,971,037.80 = 865,252.80 : x
  2. Step 2: Convert to fraction form
    1,314,025.20/1,971,037.80 = 865,252.80/x
  3. Step 3: Cross multiply
    1,314,025.20x = 1,971,037.80 × 865,252.80
  4. Step 4: Simplify right side
    1,314,025.20x = 1,705,445,975,355.84
  5. Step 5: Solve for x
    x = 1,705,445,975,355.84/1,314,025.20
  6. Step 6: Final answer
    x = 1,297,879.20

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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.