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Finding the Fourth Proportional to 779,511.76, 1,169,300.16 and 247,021

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Solution

The fourth proportional to 779,511.76, 1,169,300.16 and 247,021 is: 370,541.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,511.76 : 1,169,300.16 = 247,021 : x
  2. Step 2: Convert to fraction form
    779,511.76/1,169,300.16 = 247,021/x
  3. Step 3: Cross multiply
    779,511.76x = 1,169,300.16 × 247,021
  4. Step 4: Simplify right side
    779,511.76x = 288,841,694,823.36
  5. Step 5: Solve for x
    x = 288,841,694,823.36/779,511.76
  6. Step 6: Final answer
    x = 370,541.81

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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.