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Finding the Fourth Proportional to 557,273.49, 769,030.63 and 302,626.50

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Solution

The fourth proportional to 557,273.49, 769,030.63 and 302,626.50 is: 417,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,273.49 : 769,030.63 = 302,626.50 : x
  2. Step 2: Convert to fraction form
    557,273.49/769,030.63 = 302,626.50/x
  3. Step 3: Cross multiply
    557,273.49x = 769,030.63 × 302,626.50
  4. Step 4: Simplify right side
    557,273.49x = 232,729,047,949.70
  5. Step 5: Solve for x
    x = 232,729,047,949.70/557,273.49
  6. Step 6: Final answer
    x = 417,620.88

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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.