Home / 1,296,009.90-1,944,014.85-870,857.10

Finding the Fourth Proportional to 1,296,009.90, 1,944,014.85 and 870,857.10

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Solution

The fourth proportional to 1,296,009.90, 1,944,014.85 and 870,857.10 is: 1,306,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,009.90 : 1,944,014.85 = 870,857.10 : x
  2. Step 2: Convert to fraction form
    1,296,009.90/1,944,014.85 = 870,857.10/x
  3. Step 3: Cross multiply
    1,296,009.90x = 1,944,014.85 × 870,857.10
  4. Step 4: Simplify right side
    1,296,009.90x = 1,692,959,134,627.94
  5. Step 5: Solve for x
    x = 1,692,959,134,627.94/1,296,009.90
  6. Step 6: Final answer
    x = 1,306,285.65

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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.