Home / 1,379,265.67-2,066,208.48-778,409.29

Finding the Fourth Proportional to 1,379,265.67, 2,066,208.48 and 778,409.29

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Solution

The fourth proportional to 1,379,265.67, 2,066,208.48 and 778,409.29 is: 1,166,095.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,265.67 : 2,066,208.48 = 778,409.29 : x
  2. Step 2: Convert to fraction form
    1,379,265.67/2,066,208.48 = 778,409.29/x
  3. Step 3: Cross multiply
    1,379,265.67x = 2,066,208.48 × 778,409.29
  4. Step 4: Simplify right side
    1,379,265.67x = 1,608,355,875,908.78
  5. Step 5: Solve for x
    x = 1,608,355,875,908.78/1,379,265.67
  6. Step 6: Final answer
    x = 1,166,095.78

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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.