Home / 376,569.36-520,003.26-280,909.98

Finding the Fourth Proportional to 376,569.36, 520,003.26 and 280,909.98

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Solution

The fourth proportional to 376,569.36, 520,003.26 and 280,909.98 is: 387,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,569.36 : 520,003.26 = 280,909.98 : x
  2. Step 2: Convert to fraction form
    376,569.36/520,003.26 = 280,909.98/x
  3. Step 3: Cross multiply
    376,569.36x = 520,003.26 × 280,909.98
  4. Step 4: Simplify right side
    376,569.36x = 146,074,105,366.54
  5. Step 5: Solve for x
    x = 146,074,105,366.54/376,569.36
  6. Step 6: Final answer
    x = 387,907.57

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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.