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Finding the Fourth Proportional to 557,677.20, 769,599.40 and 303,028.38

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Solution

The fourth proportional to 557,677.20, 769,599.40 and 303,028.38 is: 418,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,677.20 : 769,599.40 = 303,028.38 : x
  2. Step 2: Convert to fraction form
    557,677.20/769,599.40 = 303,028.38/x
  3. Step 3: Cross multiply
    557,677.20x = 769,599.40 × 303,028.38
  4. Step 4: Simplify right side
    557,677.20x = 233,210,459,430.97
  5. Step 5: Solve for x
    x = 233,210,459,430.97/557,677.20
  6. Step 6: Final answer
    x = 418,181.81

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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.