Home / 758,891.56-1,047,270.72-419,359.81

Finding the Fourth Proportional to 758,891.56, 1,047,270.72 and 419,359.81

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Solution

The fourth proportional to 758,891.56, 1,047,270.72 and 419,359.81 is: 578,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,891.56 : 1,047,270.72 = 419,359.81 : x
  2. Step 2: Convert to fraction form
    758,891.56/1,047,270.72 = 419,359.81/x
  3. Step 3: Cross multiply
    758,891.56x = 1,047,270.72 × 419,359.81
  4. Step 4: Simplify right side
    758,891.56x = 439,183,250,157.76
  5. Step 5: Solve for x
    x = 439,183,250,157.76/758,891.56
  6. Step 6: Final answer
    x = 578,716.74

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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.