Home / 758,889.54-1,047,288.69-419,379.66

Finding the Fourth Proportional to 758,889.54, 1,047,288.69 and 419,379.66

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Solution

The fourth proportional to 758,889.54, 1,047,288.69 and 419,379.66 is: 578,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,889.54 : 1,047,288.69 = 419,379.66 : x
  2. Step 2: Convert to fraction form
    758,889.54/1,047,288.69 = 419,379.66/x
  3. Step 3: Cross multiply
    758,889.54x = 1,047,288.69 × 419,379.66
  4. Step 4: Simplify right side
    758,889.54x = 439,211,574,734.05
  5. Step 5: Solve for x
    x = 439,211,574,734.05/758,889.54
  6. Step 6: Final answer
    x = 578,755.60

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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.