Home / 769,744.60-1,155,999.30-559,619.80

Finding the Fourth Proportional to 769,744.60, 1,155,999.30 and 559,619.80

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Solution

The fourth proportional to 769,744.60, 1,155,999.30 and 559,619.80 is: 840,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,744.60 : 1,155,999.30 = 559,619.80 : x
  2. Step 2: Convert to fraction form
    769,744.60/1,155,999.30 = 559,619.80/x
  3. Step 3: Cross multiply
    769,744.60x = 1,155,999.30 × 559,619.80
  4. Step 4: Simplify right side
    769,744.60x = 646,920,097,066.14
  5. Step 5: Solve for x
    x = 646,920,097,066.14/769,744.60
  6. Step 6: Final answer
    x = 840,434.73

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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.