Home / 570,619.72-787,454.01-328,900.66

Finding the Fourth Proportional to 570,619.72, 787,454.01 and 328,900.66

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Solution

The fourth proportional to 570,619.72, 787,454.01 and 328,900.66 is: 453,882.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,619.72 : 787,454.01 = 328,900.66 : x
  2. Step 2: Convert to fraction form
    570,619.72/787,454.01 = 328,900.66/x
  3. Step 3: Cross multiply
    570,619.72x = 787,454.01 × 328,900.66
  4. Step 4: Simplify right side
    570,619.72x = 258,994,143,608.65
  5. Step 5: Solve for x
    x = 258,994,143,608.65/570,619.72
  6. Step 6: Final answer
    x = 453,882.22

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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.