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Finding the Fourth Proportional to 557,055.92, 768,737.13 and 302,407.11

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Solution

The fourth proportional to 557,055.92, 768,737.13 and 302,407.11 is: 417,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,055.92 : 768,737.13 = 302,407.11 : x
  2. Step 2: Convert to fraction form
    557,055.92/768,737.13 = 302,407.11/x
  3. Step 3: Cross multiply
    557,055.92x = 768,737.13 × 302,407.11
  4. Step 4: Simplify right side
    557,055.92x = 232,471,573,832.99
  5. Step 5: Solve for x
    x = 232,471,573,832.99/557,055.92
  6. Step 6: Final answer
    x = 417,321.79

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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.