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Finding the Fourth Proportional to 553,819.05, 764,412.48 and 360,707.97

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Solution

The fourth proportional to 553,819.05, 764,412.48 and 360,707.97 is: 497,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,819.05 : 764,412.48 = 360,707.97 : x
  2. Step 2: Convert to fraction form
    553,819.05/764,412.48 = 360,707.97/x
  3. Step 3: Cross multiply
    553,819.05x = 764,412.48 × 360,707.97
  4. Step 4: Simplify right side
    553,819.05x = 275,729,670,983.17
  5. Step 5: Solve for x
    x = 275,729,670,983.17/553,819.05
  6. Step 6: Final answer
    x = 497,869.60

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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.