Home / 1,290,986.40-1,936,220.40-617,066.40

Finding the Fourth Proportional to 1,290,986.40, 1,936,220.40 and 617,066.40

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Solution

The fourth proportional to 1,290,986.40, 1,936,220.40 and 617,066.40 is: 925,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,986.40 : 1,936,220.40 = 617,066.40 : x
  2. Step 2: Convert to fraction form
    1,290,986.40/1,936,220.40 = 617,066.40/x
  3. Step 3: Cross multiply
    1,290,986.40x = 1,936,220.40 × 617,066.40
  4. Step 4: Simplify right side
    1,290,986.40x = 1,194,776,551,834.56
  5. Step 5: Solve for x
    x = 1,194,776,551,834.56/1,290,986.40
  6. Step 6: Final answer
    x = 925,475.71

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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.