Home / 917,422.48-1,376,217.96-356,500.72

Finding the Fourth Proportional to 917,422.48, 1,376,217.96 and 356,500.72

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Solution

The fourth proportional to 917,422.48, 1,376,217.96 and 356,500.72 is: 534,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,422.48 : 1,376,217.96 = 356,500.72 : x
  2. Step 2: Convert to fraction form
    917,422.48/1,376,217.96 = 356,500.72/x
  3. Step 3: Cross multiply
    917,422.48x = 1,376,217.96 × 356,500.72
  4. Step 4: Simplify right side
    917,422.48x = 490,622,693,616.93
  5. Step 5: Solve for x
    x = 490,622,693,616.93/917,422.48
  6. Step 6: Final answer
    x = 534,783.81

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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.