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Finding the Third Proportional to 406,430 and 893,303

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Solution

The third proportional to 406,430 and 893,303 is: 1,963,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,430 : 893,303 = 893,303 : x
  2. Step 2: Convert to fraction form
    406,430/893,303 = 893,303/x
  3. Step 3: Cross multiply
    406,430x = 893,303 × 893,303
  4. Step 4: Simplify right side
    406,430x = 797,990,249,809
  5. Step 5: Solve for x
    x = 797,990,249,809/406,430
  6. Step 6: Final answer
    x = 1,963,413.75

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.