Home / 2,140,388.88-3,210,914.96-720,334.08

Finding the Fourth Proportional to 2,140,388.88, 3,210,914.96 and 720,334.08

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Solution

The fourth proportional to 2,140,388.88, 3,210,914.96 and 720,334.08 is: 1,080,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,388.88 : 3,210,914.96 = 720,334.08 : x
  2. Step 2: Convert to fraction form
    2,140,388.88/3,210,914.96 = 720,334.08/x
  3. Step 3: Cross multiply
    2,140,388.88x = 3,210,914.96 × 720,334.08
  4. Step 4: Simplify right side
    2,140,388.88x = 2,312,931,473,669.84
  5. Step 5: Solve for x
    x = 2,312,931,473,669.84/2,140,388.88
  6. Step 6: Final answer
    x = 1,080,612.73

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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.