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Finding the Fourth Proportional to 646,662.84, 892,085.64 and 502,435.80

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Solution

The fourth proportional to 646,662.84, 892,085.64 and 502,435.80 is: 693,121.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,662.84 : 892,085.64 = 502,435.80 : x
  2. Step 2: Convert to fraction form
    646,662.84/892,085.64 = 502,435.80/x
  3. Step 3: Cross multiply
    646,662.84x = 892,085.64 × 502,435.80
  4. Step 4: Simplify right side
    646,662.84x = 448,215,762,201.91
  5. Step 5: Solve for x
    x = 448,215,762,201.91/646,662.84
  6. Step 6: Final answer
    x = 693,121.26

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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.