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Finding the Fourth Proportional to 806,718, 1,210,077.09 and 245,752.50

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Solution

The fourth proportional to 806,718, 1,210,077.09 and 245,752.50 is: 368,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,718 : 1,210,077.09 = 245,752.50 : x
  2. Step 2: Convert to fraction form
    806,718/1,210,077.09 = 245,752.50/x
  3. Step 3: Cross multiply
    806,718x = 1,210,077.09 × 245,752.50
  4. Step 4: Simplify right side
    806,718x = 297,379,470,060.23
  5. Step 5: Solve for x
    x = 297,379,470,060.23/806,718
  6. Step 6: Final answer
    x = 368,628.78

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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.