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Finding the Third Proportional to 406,575 and 891,666

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Solution

The third proportional to 406,575 and 891,666 is: 1,955,526.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,575 : 891,666 = 891,666 : x
  2. Step 2: Convert to fraction form
    406,575/891,666 = 891,666/x
  3. Step 3: Cross multiply
    406,575x = 891,666 × 891,666
  4. Step 4: Simplify right side
    406,575x = 795,068,255,556
  5. Step 5: Solve for x
    x = 795,068,255,556/406,575
  6. Step 6: Final answer
    x = 1,955,526.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.