Home / 987,181.32-1,480,761.02-313,262.12

Finding the Fourth Proportional to 987,181.32, 1,480,761.02 and 313,262.12

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Solution

The fourth proportional to 987,181.32, 1,480,761.02 and 313,262.12 is: 469,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,181.32 : 1,480,761.02 = 313,262.12 : x
  2. Step 2: Convert to fraction form
    987,181.32/1,480,761.02 = 313,262.12/x
  3. Step 3: Cross multiply
    987,181.32x = 1,480,761.02 × 313,262.12
  4. Step 4: Simplify right side
    987,181.32x = 463,866,336,338.56
  5. Step 5: Solve for x
    x = 463,866,336,338.56/987,181.32
  6. Step 6: Final answer
    x = 469,889.70

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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.