Home / 1,057,939.20-1,587,142.08-347,938.56

Finding the Fourth Proportional to 1,057,939.20, 1,587,142.08 and 347,938.56

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Solution

The fourth proportional to 1,057,939.20, 1,587,142.08 and 347,938.56 is: 521,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,939.20 : 1,587,142.08 = 347,938.56 : x
  2. Step 2: Convert to fraction form
    1,057,939.20/1,587,142.08 = 347,938.56/x
  3. Step 3: Cross multiply
    1,057,939.20x = 1,587,142.08 × 347,938.56
  4. Step 4: Simplify right side
    1,057,939.20x = 552,227,929,830.61
  5. Step 5: Solve for x
    x = 552,227,929,830.61/1,057,939.20
  6. Step 6: Final answer
    x = 521,984.56

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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.