Home / 1,290,241.56-1,780,594.08-717,291.28

Finding the Fourth Proportional to 1,290,241.56, 1,780,594.08 and 717,291.28

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Solution

The fourth proportional to 1,290,241.56, 1,780,594.08 and 717,291.28 is: 989,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,241.56 : 1,780,594.08 = 717,291.28 : x
  2. Step 2: Convert to fraction form
    1,290,241.56/1,780,594.08 = 717,291.28/x
  3. Step 3: Cross multiply
    1,290,241.56x = 1,780,594.08 × 717,291.28
  4. Step 4: Simplify right side
    1,290,241.56x = 1,277,204,606,803.62
  5. Step 5: Solve for x
    x = 1,277,204,606,803.62/1,290,241.56
  6. Step 6: Final answer
    x = 989,895.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.