Home / 1,268,886.40-1,901,716.80-520,086.40

Finding the Fourth Proportional to 1,268,886.40, 1,901,716.80 and 520,086.40

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Solution

The fourth proportional to 1,268,886.40, 1,901,716.80 and 520,086.40 is: 779,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,886.40 : 1,901,716.80 = 520,086.40 : x
  2. Step 2: Convert to fraction form
    1,268,886.40/1,901,716.80 = 520,086.40/x
  3. Step 3: Cross multiply
    1,268,886.40x = 1,901,716.80 × 520,086.40
  4. Step 4: Simplify right side
    1,268,886.40x = 989,057,044,331.52
  5. Step 5: Solve for x
    x = 989,057,044,331.52/1,268,886.40
  6. Step 6: Final answer
    x = 779,468.55

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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.