Home / 838,916.43-1,157,785.20-516,815.07

Finding the Fourth Proportional to 838,916.43, 1,157,785.20 and 516,815.07

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Solution

The fourth proportional to 838,916.43, 1,157,785.20 and 516,815.07 is: 713,254.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,916.43 : 1,157,785.20 = 516,815.07 : x
  2. Step 2: Convert to fraction form
    838,916.43/1,157,785.20 = 516,815.07/x
  3. Step 3: Cross multiply
    838,916.43x = 1,157,785.20 × 516,815.07
  4. Step 4: Simplify right side
    838,916.43x = 598,360,839,182.96
  5. Step 5: Solve for x
    x = 598,360,839,182.96/838,916.43
  6. Step 6: Final answer
    x = 713,254.41

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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.