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Finding the Fourth Proportional to 557,101.77, 768,800.43 and 302,452.95

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Solution

The fourth proportional to 557,101.77, 768,800.43 and 302,452.95 is: 417,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,101.77 : 768,800.43 = 302,452.95 : x
  2. Step 2: Convert to fraction form
    557,101.77/768,800.43 = 302,452.95/x
  3. Step 3: Cross multiply
    557,101.77x = 768,800.43 × 302,452.95
  4. Step 4: Simplify right side
    557,101.77x = 232,525,960,897.77
  5. Step 5: Solve for x
    x = 232,525,960,897.77/557,101.77
  6. Step 6: Final answer
    x = 417,385.07

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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.