Home / 1,021,820.78-1,532,731.01-311,852.46

Finding the Fourth Proportional to 1,021,820.78, 1,532,731.01 and 311,852.46

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Solution

The fourth proportional to 1,021,820.78, 1,532,731.01 and 311,852.46 is: 467,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,820.78 : 1,532,731.01 = 311,852.46 : x
  2. Step 2: Convert to fraction form
    1,021,820.78/1,532,731.01 = 311,852.46/x
  3. Step 3: Cross multiply
    1,021,820.78x = 1,532,731.01 × 311,852.46
  4. Step 4: Simplify right side
    1,021,820.78x = 477,985,935,986.79
  5. Step 5: Solve for x
    x = 477,985,935,986.79/1,021,820.78
  6. Step 6: Final answer
    x = 467,778.64

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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.