Home / 1,211,879.76-1,817,200.06-401,971.78

Finding the Fourth Proportional to 1,211,879.76, 1,817,200.06 and 401,971.78

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Solution

The fourth proportional to 1,211,879.76, 1,817,200.06 and 401,971.78 is: 602,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,879.76 : 1,817,200.06 = 401,971.78 : x
  2. Step 2: Convert to fraction form
    1,211,879.76/1,817,200.06 = 401,971.78/x
  3. Step 3: Cross multiply
    1,211,879.76x = 1,817,200.06 × 401,971.78
  4. Step 4: Simplify right side
    1,211,879.76x = 730,463,142,734.31
  5. Step 5: Solve for x
    x = 730,463,142,734.31/1,211,879.76
  6. Step 6: Final answer
    x = 602,752.16

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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.