Home / 1,878,122.85-2,817,232.80-511,907.79

Finding the Fourth Proportional to 1,878,122.85, 2,817,232.80 and 511,907.79

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Solution

The fourth proportional to 1,878,122.85, 2,817,232.80 and 511,907.79 is: 767,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,122.85 : 2,817,232.80 = 511,907.79 : x
  2. Step 2: Convert to fraction form
    1,878,122.85/2,817,232.80 = 511,907.79/x
  3. Step 3: Cross multiply
    1,878,122.85x = 2,817,232.80 × 511,907.79
  4. Step 4: Simplify right side
    1,878,122.85x = 1,442,163,416,563.51
  5. Step 5: Solve for x
    x = 1,442,163,416,563.51/1,878,122.85
  6. Step 6: Final answer
    x = 767,874.91

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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.