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Finding the Fourth Proportional to 557,973.40, 769,994.22 and 303,331

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Solution

The fourth proportional to 557,973.40, 769,994.22 and 303,331 is: 418,591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,973.40 : 769,994.22 = 303,331 : x
  2. Step 2: Convert to fraction form
    557,973.40/769,994.22 = 303,331/x
  3. Step 3: Cross multiply
    557,973.40x = 769,994.22 × 303,331
  4. Step 4: Simplify right side
    557,973.40x = 233,563,116,746.82
  5. Step 5: Solve for x
    x = 233,563,116,746.82/557,973.40
  6. Step 6: Final answer
    x = 418,591.85

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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.