Home / 679,627.86-1,019,885.31-253,504.56

Finding the Fourth Proportional to 679,627.86, 1,019,885.31 and 253,504.56

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Solution

The fourth proportional to 679,627.86, 1,019,885.31 and 253,504.56 is: 380,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,627.86 : 1,019,885.31 = 253,504.56 : x
  2. Step 2: Convert to fraction form
    679,627.86/1,019,885.31 = 253,504.56/x
  3. Step 3: Cross multiply
    679,627.86x = 1,019,885.31 × 253,504.56
  4. Step 4: Simplify right side
    679,627.86x = 258,545,581,537.23
  5. Step 5: Solve for x
    x = 258,545,581,537.23/679,627.86
  6. Step 6: Final answer
    x = 380,422.28

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Double scale
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1.5x scale

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.