Home / 3,407,987.60-5,110,037.40-1,278,141.20

Finding the Fourth Proportional to 3,407,987.60, 5,110,037.40 and 1,278,141.20

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Solution

The fourth proportional to 3,407,987.60, 5,110,037.40 and 1,278,141.20 is: 1,916,482.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407,987.60 : 5,110,037.40 = 1,278,141.20 : x
  2. Step 2: Convert to fraction form
    3,407,987.60/5,110,037.40 = 1,278,141.20/x
  3. Step 3: Cross multiply
    3,407,987.60x = 5,110,037.40 × 1,278,141.20
  4. Step 4: Simplify right side
    3,407,987.60x = 6,531,349,334,480.88
  5. Step 5: Solve for x
    x = 6,531,349,334,480.88/3,407,987.60
  6. Step 6: Final answer
    x = 1,916,482.72

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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.