Home / 557,278.09-769,279.18-376,235.24

Finding the Fourth Proportional to 557,278.09, 769,279.18 and 376,235.24

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Solution

The fourth proportional to 557,278.09, 769,279.18 and 376,235.24 is: 519,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,278.09 : 769,279.18 = 376,235.24 : x
  2. Step 2: Convert to fraction form
    557,278.09/769,279.18 = 376,235.24/x
  3. Step 3: Cross multiply
    557,278.09x = 769,279.18 × 376,235.24
  4. Step 4: Simplify right side
    557,278.09x = 289,429,936,914.30
  5. Step 5: Solve for x
    x = 289,429,936,914.30/557,278.09
  6. Step 6: Final answer
    x = 519,363.57

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1.5x scale

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.