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Finding the Fourth Proportional to 557,756.37, 769,712.10 and 303,107.76

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Solution

The fourth proportional to 557,756.37, 769,712.10 and 303,107.76 is: 418,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,756.37 : 769,712.10 = 303,107.76 : x
  2. Step 2: Convert to fraction form
    557,756.37/769,712.10 = 303,107.76/x
  3. Step 3: Cross multiply
    557,756.37x = 769,712.10 × 303,107.76
  4. Step 4: Simplify right side
    557,756.37x = 233,305,710,475.90
  5. Step 5: Solve for x
    x = 233,305,710,475.90/557,756.37
  6. Step 6: Final answer
    x = 418,293.22

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1.5x scale

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.