Home / 919,856.40-1,379,784.60-809,264.40

Finding the Fourth Proportional to 919,856.40, 1,379,784.60 and 809,264.40

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Solution

The fourth proportional to 919,856.40, 1,379,784.60 and 809,264.40 is: 1,213,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,856.40 : 1,379,784.60 = 809,264.40 : x
  2. Step 2: Convert to fraction form
    919,856.40/1,379,784.60 = 809,264.40/x
  3. Step 3: Cross multiply
    919,856.40x = 1,379,784.60 × 809,264.40
  4. Step 4: Simplify right side
    919,856.40x = 1,116,610,556,448.24
  5. Step 5: Solve for x
    x = 1,116,610,556,448.24/919,856.40
  6. Step 6: Final answer
    x = 1,213,896.60

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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.