Home / 838,274.70-1,257,399.69-207,188.46

Finding the Fourth Proportional to 838,274.70, 1,257,399.69 and 207,188.46

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Solution

The fourth proportional to 838,274.70, 1,257,399.69 and 207,188.46 is: 310,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,274.70 : 1,257,399.69 = 207,188.46 : x
  2. Step 2: Convert to fraction form
    838,274.70/1,257,399.69 = 207,188.46/x
  3. Step 3: Cross multiply
    838,274.70x = 1,257,399.69 × 207,188.46
  4. Step 4: Simplify right side
    838,274.70x = 260,518,705,375.58
  5. Step 5: Solve for x
    x = 260,518,705,375.58/838,274.70
  6. Step 6: Final answer
    x = 310,779.64

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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.