Home / 2,140,055.40-3,210,228.90-680,986.20

Finding the Fourth Proportional to 2,140,055.40, 3,210,228.90 and 680,986.20

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Solution

The fourth proportional to 2,140,055.40, 3,210,228.90 and 680,986.20 is: 1,021,525.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,055.40 : 3,210,228.90 = 680,986.20 : x
  2. Step 2: Convert to fraction form
    2,140,055.40/3,210,228.90 = 680,986.20/x
  3. Step 3: Cross multiply
    2,140,055.40x = 3,210,228.90 × 680,986.20
  4. Step 4: Simplify right side
    2,140,055.40x = 2,186,121,579,741.18
  5. Step 5: Solve for x
    x = 2,186,121,579,741.18/2,140,055.40
  6. Step 6: Final answer
    x = 1,021,525.69

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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.