Home / 781,112.90-1,077,884.96-436,889.19

Finding the Fourth Proportional to 781,112.90, 1,077,884.96 and 436,889.19

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Solution

The fourth proportional to 781,112.90, 1,077,884.96 and 436,889.19 is: 602,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,112.90 : 1,077,884.96 = 436,889.19 : x
  2. Step 2: Convert to fraction form
    781,112.90/1,077,884.96 = 436,889.19/x
  3. Step 3: Cross multiply
    781,112.90x = 1,077,884.96 × 436,889.19
  4. Step 4: Simplify right side
    781,112.90x = 470,916,288,945.21
  5. Step 5: Solve for x
    x = 470,916,288,945.21/781,112.90
  6. Step 6: Final answer
    x = 602,878.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.