Home / 1,305,138.24-1,801,897.20-870,167.52

Finding the Fourth Proportional to 1,305,138.24, 1,801,897.20 and 870,167.52

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Solution

The fourth proportional to 1,305,138.24, 1,801,897.20 and 870,167.52 is: 1,201,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,138.24 : 1,801,897.20 = 870,167.52 : x
  2. Step 2: Convert to fraction form
    1,305,138.24/1,801,897.20 = 870,167.52/x
  3. Step 3: Cross multiply
    1,305,138.24x = 1,801,897.20 × 870,167.52
  4. Step 4: Simplify right side
    1,305,138.24x = 1,567,952,417,818.94
  5. Step 5: Solve for x
    x = 1,567,952,417,818.94/1,305,138.24
  6. Step 6: Final answer
    x = 1,201,368.84

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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.