Home / 2,127,280.75-3,189,131.29-989,464.84

Finding the Fourth Proportional to 2,127,280.75, 3,189,131.29 and 989,464.84

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Solution

The fourth proportional to 2,127,280.75, 3,189,131.29 and 989,464.84 is: 1,483,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,280.75 : 3,189,131.29 = 989,464.84 : x
  2. Step 2: Convert to fraction form
    2,127,280.75/3,189,131.29 = 989,464.84/x
  3. Step 3: Cross multiply
    2,127,280.75x = 3,189,131.29 × 989,464.84
  4. Step 4: Simplify right side
    2,127,280.75x = 3,155,533,281,598.84
  5. Step 5: Solve for x
    x = 3,155,533,281,598.84/2,127,280.75
  6. Step 6: Final answer
    x = 1,483,364.75

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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.