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Finding the Fourth Proportional to 556,828, 768,423.18 and 302,179.24

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Solution

The fourth proportional to 556,828, 768,423.18 and 302,179.24 is: 417,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,828 : 768,423.18 = 302,179.24 : x
  2. Step 2: Convert to fraction form
    556,828/768,423.18 = 302,179.24/x
  3. Step 3: Cross multiply
    556,828x = 768,423.18 × 302,179.24
  4. Step 4: Simplify right side
    556,828x = 232,201,532,530.78
  5. Step 5: Solve for x
    x = 232,201,532,530.78/556,828
  6. Step 6: Final answer
    x = 417,007.64

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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.