Home / 851,722.64-1,279,438.48-514,921.90

Finding the Fourth Proportional to 851,722.64, 1,279,438.48 and 514,921.90

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Solution

The fourth proportional to 851,722.64, 1,279,438.48 and 514,921.90 is: 773,504.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,722.64 : 1,279,438.48 = 514,921.90 : x
  2. Step 2: Convert to fraction form
    851,722.64/1,279,438.48 = 514,921.90/x
  3. Step 3: Cross multiply
    851,722.64x = 1,279,438.48 × 514,921.90
  4. Step 4: Simplify right side
    851,722.64x = 658,810,893,054.71
  5. Step 5: Solve for x
    x = 658,810,893,054.71/851,722.64
  6. Step 6: Final answer
    x = 773,504.03

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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.