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Finding the Fourth Proportional to 557,793.76, 769,492.47 and 404,495.66

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Solution

The fourth proportional to 557,793.76, 769,492.47 and 404,495.66 is: 558,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,793.76 : 769,492.47 = 404,495.66 : x
  2. Step 2: Convert to fraction form
    557,793.76/769,492.47 = 404,495.66/x
  3. Step 3: Cross multiply
    557,793.76x = 769,492.47 × 404,495.66
  4. Step 4: Simplify right side
    557,793.76x = 311,256,363,629.88
  5. Step 5: Solve for x
    x = 311,256,363,629.88/557,793.76
  6. Step 6: Final answer
    x = 558,013.35

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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.