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Finding the Fourth Proportional to 557,752.02, 769,702.68 and 303,103.20

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Solution

The fourth proportional to 557,752.02, 769,702.68 and 303,103.20 is: 418,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,752.02 : 769,702.68 = 303,103.20 : x
  2. Step 2: Convert to fraction form
    557,752.02/769,702.68 = 303,103.20/x
  3. Step 3: Cross multiply
    557,752.02x = 769,702.68 × 303,103.20
  4. Step 4: Simplify right side
    557,752.02x = 233,299,345,356.58
  5. Step 5: Solve for x
    x = 233,299,345,356.58/557,752.02
  6. Step 6: Final answer
    x = 418,285.07

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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.