Home / 873,114.36-1,309,671.89-392,781.12

Finding the Fourth Proportional to 873,114.36, 1,309,671.89 and 392,781.12

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Solution

The fourth proportional to 873,114.36, 1,309,671.89 and 392,781.12 is: 589,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,114.36 : 1,309,671.89 = 392,781.12 : x
  2. Step 2: Convert to fraction form
    873,114.36/1,309,671.89 = 392,781.12/x
  3. Step 3: Cross multiply
    873,114.36x = 1,309,671.89 × 392,781.12
  4. Step 4: Simplify right side
    873,114.36x = 514,414,389,822.81
  5. Step 5: Solve for x
    x = 514,414,389,822.81/873,114.36
  6. Step 6: Final answer
    x = 589,171.84

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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.