Home / 456,320.61-629,723.88-255,116.61

Finding the Fourth Proportional to 456,320.61, 629,723.88 and 255,116.61

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Solution

The fourth proportional to 456,320.61, 629,723.88 and 255,116.61 is: 352,061.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,320.61 : 629,723.88 = 255,116.61 : x
  2. Step 2: Convert to fraction form
    456,320.61/629,723.88 = 255,116.61/x
  3. Step 3: Cross multiply
    456,320.61x = 629,723.88 × 255,116.61
  4. Step 4: Simplify right side
    456,320.61x = 160,653,021,501.65
  5. Step 5: Solve for x
    x = 160,653,021,501.65/456,320.61
  6. Step 6: Final answer
    x = 352,061.73

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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.