Home / 1,021,330.52-1,531,995.76-311,352.41

Finding the Fourth Proportional to 1,021,330.52, 1,531,995.76 and 311,352.41

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Solution

The fourth proportional to 1,021,330.52, 1,531,995.76 and 311,352.41 is: 467,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,330.52 : 1,531,995.76 = 311,352.41 : x
  2. Step 2: Convert to fraction form
    1,021,330.52/1,531,995.76 = 311,352.41/x
  3. Step 3: Cross multiply
    1,021,330.52x = 1,531,995.76 × 311,352.41
  4. Step 4: Simplify right side
    1,021,330.52x = 476,990,571,985.78
  5. Step 5: Solve for x
    x = 476,990,571,985.78/1,021,330.52
  6. Step 6: Final answer
    x = 467,028.61

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Double scale
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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.