Home / 738,644.29-1,108,080.99-312,181.91

Finding the Fourth Proportional to 738,644.29, 1,108,080.99 and 312,181.91

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Solution

The fourth proportional to 738,644.29, 1,108,080.99 and 312,181.91 is: 468,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,644.29 : 1,108,080.99 = 312,181.91 : x
  2. Step 2: Convert to fraction form
    738,644.29/1,108,080.99 = 312,181.91/x
  3. Step 3: Cross multiply
    738,644.29x = 1,108,080.99 × 312,181.91
  4. Step 4: Simplify right side
    738,644.29x = 345,922,840,673.35
  5. Step 5: Solve for x
    x = 345,922,840,673.35/738,644.29
  6. Step 6: Final answer
    x = 468,321.28

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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.