Home / 1,280,042.44-1,766,879.54-1,018,876.81

Finding the Fourth Proportional to 1,280,042.44, 1,766,879.54 and 1,018,876.81

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Solution

The fourth proportional to 1,280,042.44, 1,766,879.54 and 1,018,876.81 is: 1,406,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,042.44 : 1,766,879.54 = 1,018,876.81 : x
  2. Step 2: Convert to fraction form
    1,280,042.44/1,766,879.54 = 1,018,876.81/x
  3. Step 3: Cross multiply
    1,280,042.44x = 1,766,879.54 × 1,018,876.81
  4. Step 4: Simplify right side
    1,280,042.44x = 1,800,232,584,697.26
  5. Step 5: Solve for x
    x = 1,800,232,584,697.26/1,280,042.44
  6. Step 6: Final answer
    x = 1,406,385.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.