Home / 1,980,904.80-2,971,357.20-718,568.40

Finding the Fourth Proportional to 1,980,904.80, 2,971,357.20 and 718,568.40

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Solution

The fourth proportional to 1,980,904.80, 2,971,357.20 and 718,568.40 is: 1,077,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,904.80 : 2,971,357.20 = 718,568.40 : x
  2. Step 2: Convert to fraction form
    1,980,904.80/2,971,357.20 = 718,568.40/x
  3. Step 3: Cross multiply
    1,980,904.80x = 2,971,357.20 × 718,568.40
  4. Step 4: Simplify right side
    1,980,904.80x = 2,135,123,389,032.48
  5. Step 5: Solve for x
    x = 2,135,123,389,032.48/1,980,904.80
  6. Step 6: Final answer
    x = 1,077,852.60

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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.