Home / 858,760.70-1,185,126.78-476,787.50

Finding the Fourth Proportional to 858,760.70, 1,185,126.78 and 476,787.50

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Solution

The fourth proportional to 858,760.70, 1,185,126.78 and 476,787.50 is: 657,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,760.70 : 1,185,126.78 = 476,787.50 : x
  2. Step 2: Convert to fraction form
    858,760.70/1,185,126.78 = 476,787.50/x
  3. Step 3: Cross multiply
    858,760.70x = 1,185,126.78 × 476,787.50
  4. Step 4: Simplify right side
    858,760.70x = 565,053,634,619.25
  5. Step 5: Solve for x
    x = 565,053,634,619.25/858,760.70
  6. Step 6: Final answer
    x = 657,987.30

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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.