Home / 2,119,785.60-3,175,012.80-1,276,867.20

Finding the Fourth Proportional to 2,119,785.60, 3,175,012.80 and 1,276,867.20

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Solution

The fourth proportional to 2,119,785.60, 3,175,012.80 and 1,276,867.20 is: 1,912,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,785.60 : 3,175,012.80 = 1,276,867.20 : x
  2. Step 2: Convert to fraction form
    2,119,785.60/3,175,012.80 = 1,276,867.20/x
  3. Step 3: Cross multiply
    2,119,785.60x = 3,175,012.80 × 1,276,867.20
  4. Step 4: Simplify right side
    2,119,785.60x = 4,054,069,703,900.16
  5. Step 5: Solve for x
    x = 4,054,069,703,900.16/2,119,785.60
  6. Step 6: Final answer
    x = 1,912,490.44

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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.