Home / 1,878,279.12-2,816,827.38-615,811.50

Finding the Fourth Proportional to 1,878,279.12, 2,816,827.38 and 615,811.50

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Solution

The fourth proportional to 1,878,279.12, 2,816,827.38 and 615,811.50 is: 923,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,279.12 : 2,816,827.38 = 615,811.50 : x
  2. Step 2: Convert to fraction form
    1,878,279.12/2,816,827.38 = 615,811.50/x
  3. Step 3: Cross multiply
    1,878,279.12x = 2,816,827.38 × 615,811.50
  4. Step 4: Simplify right side
    1,878,279.12x = 1,734,634,694,118.87
  5. Step 5: Solve for x
    x = 1,734,634,694,118.87/1,878,279.12
  6. Step 6: Final answer
    x = 923,523.39

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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.