Home / 650,620.20-975,638.70-251,128.20

Finding the Fourth Proportional to 650,620.20, 975,638.70 and 251,128.20

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Solution

The fourth proportional to 650,620.20, 975,638.70 and 251,128.20 is: 376,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,620.20 : 975,638.70 = 251,128.20 : x
  2. Step 2: Convert to fraction form
    650,620.20/975,638.70 = 251,128.20/x
  3. Step 3: Cross multiply
    650,620.20x = 975,638.70 × 251,128.20
  4. Step 4: Simplify right side
    650,620.20x = 245,010,390,581.34
  5. Step 5: Solve for x
    x = 245,010,390,581.34/650,620.20
  6. Step 6: Final answer
    x = 376,579.75

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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.