Home / 1,179,085.74-1,769,002.47-420,910.53

Finding the Fourth Proportional to 1,179,085.74, 1,769,002.47 and 420,910.53

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Solution

The fourth proportional to 1,179,085.74, 1,769,002.47 and 420,910.53 is: 631,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,085.74 : 1,769,002.47 = 420,910.53 : x
  2. Step 2: Convert to fraction form
    1,179,085.74/1,769,002.47 = 420,910.53/x
  3. Step 3: Cross multiply
    1,179,085.74x = 1,769,002.47 × 420,910.53
  4. Step 4: Simplify right side
    1,179,085.74x = 744,591,767,219.01
  5. Step 5: Solve for x
    x = 744,591,767,219.01/1,179,085.74
  6. Step 6: Final answer
    x = 631,499.26

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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.