Home / 1,252,039.62-1,878,208.40-398,811.61

Finding the Fourth Proportional to 1,252,039.62, 1,878,208.40 and 398,811.61

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Solution

The fourth proportional to 1,252,039.62, 1,878,208.40 and 398,811.61 is: 598,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,039.62 : 1,878,208.40 = 398,811.61 : x
  2. Step 2: Convert to fraction form
    1,252,039.62/1,878,208.40 = 398,811.61/x
  3. Step 3: Cross multiply
    1,252,039.62x = 1,878,208.40 × 398,811.61
  4. Step 4: Simplify right side
    1,252,039.62x = 749,051,312,221.03
  5. Step 5: Solve for x
    x = 749,051,312,221.03/1,252,039.62
  6. Step 6: Final answer
    x = 598,264.86

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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.