Home / 1,077,674.20-1,616,511.30-809,985.40

Finding the Fourth Proportional to 1,077,674.20, 1,616,511.30 and 809,985.40

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Solution

The fourth proportional to 1,077,674.20, 1,616,511.30 and 809,985.40 is: 1,214,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,674.20 : 1,616,511.30 = 809,985.40 : x
  2. Step 2: Convert to fraction form
    1,077,674.20/1,616,511.30 = 809,985.40/x
  3. Step 3: Cross multiply
    1,077,674.20x = 1,616,511.30 × 809,985.40
  4. Step 4: Simplify right side
    1,077,674.20x = 1,309,350,551,935.02
  5. Step 5: Solve for x
    x = 1,309,350,551,935.02/1,077,674.20
  6. Step 6: Final answer
    x = 1,214,978.10

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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.