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Finding the Fourth Proportional to 556,938.43, 768,575.91 and 302,289.73

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Solution

The fourth proportional to 556,938.43, 768,575.91 and 302,289.73 is: 417,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,938.43 : 768,575.91 = 302,289.73 : x
  2. Step 2: Convert to fraction form
    556,938.43/768,575.91 = 302,289.73/x
  3. Step 3: Cross multiply
    556,938.43x = 768,575.91 × 302,289.73
  4. Step 4: Simplify right side
    556,938.43x = 232,332,604,318.40
  5. Step 5: Solve for x
    x = 232,332,604,318.40/556,938.43
  6. Step 6: Final answer
    x = 417,160.30

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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.