Home / 871,866.68-1,203,320.46-509,289.41

Finding the Fourth Proportional to 871,866.68, 1,203,320.46 and 509,289.41

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Solution

The fourth proportional to 871,866.68, 1,203,320.46 and 509,289.41 is: 702,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,866.68 : 1,203,320.46 = 509,289.41 : x
  2. Step 2: Convert to fraction form
    871,866.68/1,203,320.46 = 509,289.41/x
  3. Step 3: Cross multiply
    871,866.68x = 1,203,320.46 × 509,289.41
  4. Step 4: Simplify right side
    871,866.68x = 612,838,361,097.73
  5. Step 5: Solve for x
    x = 612,838,361,097.73/871,866.68
  6. Step 6: Final answer
    x = 702,903.76

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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.