Home / 2,127,281.75-3,189,132.79-989,465.84

Finding the Fourth Proportional to 2,127,281.75, 3,189,132.79 and 989,465.84

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Solution

The fourth proportional to 2,127,281.75, 3,189,132.79 and 989,465.84 is: 1,483,366.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,281.75 : 3,189,132.79 = 989,465.84 : x
  2. Step 2: Convert to fraction form
    2,127,281.75/3,189,132.79 = 989,465.84/x
  3. Step 3: Cross multiply
    2,127,281.75x = 3,189,132.79 × 989,465.84
  4. Step 4: Simplify right side
    2,127,281.75x = 3,155,537,954,928.89
  5. Step 5: Solve for x
    x = 3,155,537,954,928.89/2,127,281.75
  6. Step 6: Final answer
    x = 1,483,366.25

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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.