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Finding the Third Proportional to 637,160 and 1,390,228

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Solution

The third proportional to 637,160 and 1,390,228 is: 3,033,357.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,160 : 1,390,228 = 1,390,228 : x
  2. Step 2: Convert to fraction form
    637,160/1,390,228 = 1,390,228/x
  3. Step 3: Cross multiply
    637,160x = 1,390,228 × 1,390,228
  4. Step 4: Simplify right side
    637,160x = 1,932,733,891,984
  5. Step 5: Solve for x
    x = 1,932,733,891,984/637,160
  6. Step 6: Final answer
    x = 3,033,357.23

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.