Home / 1,816,235.20-2,730,257.70-1,287,418.60

Finding the Fourth Proportional to 1,816,235.20, 2,730,257.70 and 1,287,418.60

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Solution

The fourth proportional to 1,816,235.20, 2,730,257.70 and 1,287,418.60 is: 1,935,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816,235.20 : 2,730,257.70 = 1,287,418.60 : x
  2. Step 2: Convert to fraction form
    1,816,235.20/2,730,257.70 = 1,287,418.60/x
  3. Step 3: Cross multiply
    1,816,235.20x = 2,730,257.70 × 1,287,418.60
  4. Step 4: Simplify right side
    1,816,235.20x = 3,514,984,545,773.22
  5. Step 5: Solve for x
    x = 3,514,984,545,773.22/1,816,235.20
  6. Step 6: Final answer
    x = 1,935,313.52

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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.