Home / 457,178.12-630,803.94-275,919.56

Finding the Fourth Proportional to 457,178.12, 630,803.94 and 275,919.56

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Solution

The fourth proportional to 457,178.12, 630,803.94 and 275,919.56 is: 380,707.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,178.12 : 630,803.94 = 275,919.56 : x
  2. Step 2: Convert to fraction form
    457,178.12/630,803.94 = 275,919.56/x
  3. Step 3: Cross multiply
    457,178.12x = 630,803.94 × 275,919.56
  4. Step 4: Simplify right side
    457,178.12x = 174,051,145,571.07
  5. Step 5: Solve for x
    x = 174,051,145,571.07/457,178.12
  6. Step 6: Final answer
    x = 380,707.51

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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.