Home / 557,285.09-769,288.86-376,242.26

Finding the Fourth Proportional to 557,285.09, 769,288.86 and 376,242.26

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Solution

The fourth proportional to 557,285.09, 769,288.86 and 376,242.26 is: 519,373.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,285.09 : 769,288.86 = 376,242.26 : x
  2. Step 2: Convert to fraction form
    557,285.09/769,288.86 = 376,242.26/x
  3. Step 3: Cross multiply
    557,285.09x = 769,288.86 × 376,242.26
  4. Step 4: Simplify right side
    557,285.09x = 289,438,975,432.78
  5. Step 5: Solve for x
    x = 289,438,975,432.78/557,285.09
  6. Step 6: Final answer
    x = 519,373.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.