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Finding the Fourth Proportional to 806,019, 1,208,984.74 and 245,009.76

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Solution

The fourth proportional to 806,019, 1,208,984.74 and 245,009.76 is: 367,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,019 : 1,208,984.74 = 245,009.76 : x
  2. Step 2: Convert to fraction form
    806,019/1,208,984.74 = 245,009.76/x
  3. Step 3: Cross multiply
    806,019x = 1,208,984.74 × 245,009.76
  4. Step 4: Simplify right side
    806,019x = 296,213,060,991.06
  5. Step 5: Solve for x
    x = 296,213,060,991.06/806,019
  6. Step 6: Final answer
    x = 367,501.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.