Home / 3,405,987.60-4,700,272.68-1,878,061.20

Finding the Fourth Proportional to 3,405,987.60, 4,700,272.68 and 1,878,061.20

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Solution

The fourth proportional to 3,405,987.60, 4,700,272.68 and 1,878,061.20 is: 2,591,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405,987.60 : 4,700,272.68 = 1,878,061.20 : x
  2. Step 2: Convert to fraction form
    3,405,987.60/4,700,272.68 = 1,878,061.20/x
  3. Step 3: Cross multiply
    3,405,987.60x = 4,700,272.68 × 1,878,061.20
  4. Step 4: Simplify right side
    3,405,987.60x = 8,827,399,749,728.02
  5. Step 5: Solve for x
    x = 8,827,399,749,728.02/3,405,987.60
  6. Step 6: Final answer
    x = 2,591,729.86

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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.