Home / 1,290,398.76-1,934,336.70-580,605.48

Finding the Fourth Proportional to 1,290,398.76, 1,934,336.70 and 580,605.48

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Solution

The fourth proportional to 1,290,398.76, 1,934,336.70 and 580,605.48 is: 870,340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,398.76 : 1,934,336.70 = 580,605.48 : x
  2. Step 2: Convert to fraction form
    1,290,398.76/1,934,336.70 = 580,605.48/x
  3. Step 3: Cross multiply
    1,290,398.76x = 1,934,336.70 × 580,605.48
  4. Step 4: Simplify right side
    1,290,398.76x = 1,123,086,488,185.12
  5. Step 5: Solve for x
    x = 1,123,086,488,185.12/1,290,398.76
  6. Step 6: Final answer
    x = 870,340.64

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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.