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Finding the Fourth Proportional to 556,828.50, 768,423.87 and 302,179.74

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Solution

The fourth proportional to 556,828.50, 768,423.87 and 302,179.74 is: 417,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,828.50 : 768,423.87 = 302,179.74 : x
  2. Step 2: Convert to fraction form
    556,828.50/768,423.87 = 302,179.74/x
  3. Step 3: Cross multiply
    556,828.50x = 768,423.87 × 302,179.74
  4. Step 4: Simplify right side
    556,828.50x = 232,202,125,246.39
  5. Step 5: Solve for x
    x = 232,202,125,246.39/556,828.50
  6. Step 6: Final answer
    x = 417,008.33

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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.