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Finding the Fourth Proportional to 556,860.24, 768,469.68 and 302,211.72

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Solution

The fourth proportional to 556,860.24, 768,469.68 and 302,211.72 is: 417,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,860.24 : 768,469.68 = 302,211.72 : x
  2. Step 2: Convert to fraction form
    556,860.24/768,469.68 = 302,211.72/x
  3. Step 3: Cross multiply
    556,860.24x = 768,469.68 × 302,211.72
  4. Step 4: Simplify right side
    556,860.24x = 232,240,543,760.65
  5. Step 5: Solve for x
    x = 232,240,543,760.65/556,860.24
  6. Step 6: Final answer
    x = 417,053.56

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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.