Home / 1,021,335.62-1,531,806.19-311,435.42

Finding the Fourth Proportional to 1,021,335.62, 1,531,806.19 and 311,435.42

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Solution

The fourth proportional to 1,021,335.62, 1,531,806.19 and 311,435.42 is: 467,092.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,335.62 : 1,531,806.19 = 311,435.42 : x
  2. Step 2: Convert to fraction form
    1,021,335.62/1,531,806.19 = 311,435.42/x
  3. Step 3: Cross multiply
    1,021,335.62x = 1,531,806.19 × 311,435.42
  4. Step 4: Simplify right side
    1,021,335.62x = 477,058,695,703.63
  5. Step 5: Solve for x
    x = 477,058,695,703.63/1,021,335.62
  6. Step 6: Final answer
    x = 467,092.98

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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.