Home / 1,252,041.62-1,878,211.40-398,813.61

Finding the Fourth Proportional to 1,252,041.62, 1,878,211.40 and 398,813.61

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Solution

The fourth proportional to 1,252,041.62, 1,878,211.40 and 398,813.61 is: 598,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,041.62 : 1,878,211.40 = 398,813.61 : x
  2. Step 2: Convert to fraction form
    1,252,041.62/1,878,211.40 = 398,813.61/x
  3. Step 3: Cross multiply
    1,252,041.62x = 1,878,211.40 × 398,813.61
  4. Step 4: Simplify right side
    1,252,041.62x = 749,056,268,777.15
  5. Step 5: Solve for x
    x = 749,056,268,777.15/1,252,041.62
  6. Step 6: Final answer
    x = 598,267.87

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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.