Home / 1,313,609.55-1,812,780.30-709,997.55

Finding the Fourth Proportional to 1,313,609.55, 1,812,780.30 and 709,997.55

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Solution

The fourth proportional to 1,313,609.55, 1,812,780.30 and 709,997.55 is: 979,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,609.55 : 1,812,780.30 = 709,997.55 : x
  2. Step 2: Convert to fraction form
    1,313,609.55/1,812,780.30 = 709,997.55/x
  3. Step 3: Cross multiply
    1,313,609.55x = 1,812,780.30 × 709,997.55
  4. Step 4: Simplify right side
    1,313,609.55x = 1,287,069,577,749.72
  5. Step 5: Solve for x
    x = 1,287,069,577,749.72/1,313,609.55
  6. Step 6: Final answer
    x = 979,796.15

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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.