Home / 1,868,476.20-2,578,497.12-1,009,036.43

Finding the Fourth Proportional to 1,868,476.20, 2,578,497.12 and 1,009,036.43

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Solution

The fourth proportional to 1,868,476.20, 2,578,497.12 and 1,009,036.43 is: 1,392,470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,476.20 : 2,578,497.12 = 1,009,036.43 : x
  2. Step 2: Convert to fraction form
    1,868,476.20/2,578,497.12 = 1,009,036.43/x
  3. Step 3: Cross multiply
    1,868,476.20x = 2,578,497.12 × 1,009,036.43
  4. Step 4: Simplify right side
    1,868,476.20x = 2,601,797,515,837.60
  5. Step 5: Solve for x
    x = 2,601,797,515,837.60/1,868,476.20
  6. Step 6: Final answer
    x = 1,392,470.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.