Home / 976,555.50-1,464,822.36-345,321.72

Finding the Fourth Proportional to 976,555.50, 1,464,822.36 and 345,321.72

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Solution

The fourth proportional to 976,555.50, 1,464,822.36 and 345,321.72 is: 517,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,555.50 : 1,464,822.36 = 345,321.72 : x
  2. Step 2: Convert to fraction form
    976,555.50/1,464,822.36 = 345,321.72/x
  3. Step 3: Cross multiply
    976,555.50x = 1,464,822.36 × 345,321.72
  4. Step 4: Simplify right side
    976,555.50x = 505,834,976,849.66
  5. Step 5: Solve for x
    x = 505,834,976,849.66/976,555.50
  6. Step 6: Final answer
    x = 517,978.73

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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.