Home / 757,517.56-1,046,878.86-621,339.64

Finding the Fourth Proportional to 757,517.56, 1,046,878.86 and 621,339.64

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Solution

The fourth proportional to 757,517.56, 1,046,878.86 and 621,339.64 is: 858,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,517.56 : 1,046,878.86 = 621,339.64 : x
  2. Step 2: Convert to fraction form
    757,517.56/1,046,878.86 = 621,339.64/x
  3. Step 3: Cross multiply
    757,517.56x = 1,046,878.86 × 621,339.64
  4. Step 4: Simplify right side
    757,517.56x = 650,467,333,996.01
  5. Step 5: Solve for x
    x = 650,467,333,996.01/757,517.56
  6. Step 6: Final answer
    x = 858,682.85

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1.5x scale

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.