Home / 1,211,878.76-1,817,198.57-401,970.78

Finding the Fourth Proportional to 1,211,878.76, 1,817,198.57 and 401,970.78

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Solution

The fourth proportional to 1,211,878.76, 1,817,198.57 and 401,970.78 is: 602,750.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,878.76 : 1,817,198.57 = 401,970.78 : x
  2. Step 2: Convert to fraction form
    1,211,878.76/1,817,198.57 = 401,970.78/x
  3. Step 3: Cross multiply
    1,211,878.76x = 1,817,198.57 × 401,970.78
  4. Step 4: Simplify right side
    1,211,878.76x = 730,460,724,587.93
  5. Step 5: Solve for x
    x = 730,460,724,587.93/1,211,878.76
  6. Step 6: Final answer
    x = 602,750.66

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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.