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Finding the Fourth Proportional to 892,357, 1,341,005.82 and 870,725.58

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Solution

The fourth proportional to 892,357, 1,341,005.82 and 870,725.58 is: 1,308,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,357 : 1,341,005.82 = 870,725.58 : x
  2. Step 2: Convert to fraction form
    892,357/1,341,005.82 = 870,725.58/x
  3. Step 3: Cross multiply
    892,357x = 1,341,005.82 × 870,725.58
  4. Step 4: Simplify right side
    892,357x = 1,167,648,070,402.88
  5. Step 5: Solve for x
    x = 1,167,648,070,402.88/892,357
  6. Step 6: Final answer
    x = 1,308,498.81

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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.