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Finding the Fourth Proportional to 557,007.60, 768,669.82 and 302,358.79

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Solution

The fourth proportional to 557,007.60, 768,669.82 and 302,358.79 is: 417,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,007.60 : 768,669.82 = 302,358.79 : x
  2. Step 2: Convert to fraction form
    557,007.60/768,669.82 = 302,358.79/x
  3. Step 3: Cross multiply
    557,007.60x = 768,669.82 × 302,358.79
  4. Step 4: Simplify right side
    557,007.60x = 232,414,076,684.72
  5. Step 5: Solve for x
    x = 232,414,076,684.72/557,007.60
  6. Step 6: Final answer
    x = 417,254.77

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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.