Home / 1,980,921.60-2,971,036.80-718,099.20

Finding the Fourth Proportional to 1,980,921.60, 2,971,036.80 and 718,099.20

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Solution

The fourth proportional to 1,980,921.60, 2,971,036.80 and 718,099.20 is: 1,077,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,921.60 : 2,971,036.80 = 718,099.20 : x
  2. Step 2: Convert to fraction form
    1,980,921.60/2,971,036.80 = 718,099.20/x
  3. Step 3: Cross multiply
    1,980,921.60x = 2,971,036.80 × 718,099.20
  4. Step 4: Simplify right side
    1,980,921.60x = 2,133,499,149,250.56
  5. Step 5: Solve for x
    x = 2,133,499,149,250.56/1,980,921.60
  6. Step 6: Final answer
    x = 1,077,023.52

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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.