Home / 920,971.44-1,378,906.32-470,722.68

Finding the Fourth Proportional to 920,971.44, 1,378,906.32 and 470,722.68

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Solution

The fourth proportional to 920,971.44, 1,378,906.32 and 470,722.68 is: 704,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,971.44 : 1,378,906.32 = 470,722.68 : x
  2. Step 2: Convert to fraction form
    920,971.44/1,378,906.32 = 470,722.68/x
  3. Step 3: Cross multiply
    920,971.44x = 1,378,906.32 × 470,722.68
  4. Step 4: Simplify right side
    920,971.44x = 649,082,478,419.34
  5. Step 5: Solve for x
    x = 649,082,478,419.34/920,971.44
  6. Step 6: Final answer
    x = 704,780.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.