Home / 2,180,143.80-3,272,159.70-1,280,460.60

Finding the Fourth Proportional to 2,180,143.80, 3,272,159.70 and 1,280,460.60

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Solution

The fourth proportional to 2,180,143.80, 3,272,159.70 and 1,280,460.60 is: 1,921,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,143.80 : 3,272,159.70 = 1,280,460.60 : x
  2. Step 2: Convert to fraction form
    2,180,143.80/3,272,159.70 = 1,280,460.60/x
  3. Step 3: Cross multiply
    2,180,143.80x = 3,272,159.70 × 1,280,460.60
  4. Step 4: Simplify right side
    2,180,143.80x = 4,189,871,572,757.82
  5. Step 5: Solve for x
    x = 4,189,871,572,757.82/2,180,143.80
  6. Step 6: Final answer
    x = 1,921,832.67

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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.