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Finding the Fourth Proportional to 646,651.56, 892,070.09 and 502,424.58

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Solution

The fourth proportional to 646,651.56, 892,070.09 and 502,424.58 is: 693,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,651.56 : 892,070.09 = 502,424.58 : x
  2. Step 2: Convert to fraction form
    646,651.56/892,070.09 = 502,424.58/x
  3. Step 3: Cross multiply
    646,651.56x = 892,070.09 × 502,424.58
  4. Step 4: Simplify right side
    646,651.56x = 448,197,940,298.81
  5. Step 5: Solve for x
    x = 448,197,940,298.81/646,651.56
  6. Step 6: Final answer
    x = 693,105.79

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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.