Home / 1,510,078.80-2,259,213.30-978,637.80

Finding the Fourth Proportional to 1,510,078.80, 2,259,213.30 and 978,637.80

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Solution

The fourth proportional to 1,510,078.80, 2,259,213.30 and 978,637.80 is: 1,464,129.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,078.80 : 2,259,213.30 = 978,637.80 : x
  2. Step 2: Convert to fraction form
    1,510,078.80/2,259,213.30 = 978,637.80/x
  3. Step 3: Cross multiply
    1,510,078.80x = 2,259,213.30 × 978,637.80
  4. Step 4: Simplify right side
    1,510,078.80x = 2,210,951,533,642.74
  5. Step 5: Solve for x
    x = 2,210,951,533,642.74/1,510,078.80
  6. Step 6: Final answer
    x = 1,464,129.91

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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.