Home / 1,108,518.95-1,662,040.08-398,454.73

Finding the Fourth Proportional to 1,108,518.95, 1,662,040.08 and 398,454.73

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Solution

The fourth proportional to 1,108,518.95, 1,662,040.08 and 398,454.73 is: 597,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,518.95 : 1,662,040.08 = 398,454.73 : x
  2. Step 2: Convert to fraction form
    1,108,518.95/1,662,040.08 = 398,454.73/x
  3. Step 3: Cross multiply
    1,108,518.95x = 1,662,040.08 × 398,454.73
  4. Step 4: Simplify right side
    1,108,518.95x = 662,247,723,015.38
  5. Step 5: Solve for x
    x = 662,247,723,015.38/1,108,518.95
  6. Step 6: Final answer
    x = 597,416.69

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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.