Home / 389,629.20-583,787.70-366,009.60

Finding the Fourth Proportional to 389,629.20, 583,787.70 and 366,009.60

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Solution

The fourth proportional to 389,629.20, 583,787.70 and 366,009.60 is: 548,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,629.20 : 583,787.70 = 366,009.60 : x
  2. Step 2: Convert to fraction form
    389,629.20/583,787.70 = 366,009.60/x
  3. Step 3: Cross multiply
    389,629.20x = 583,787.70 × 366,009.60
  4. Step 4: Simplify right side
    389,629.20x = 213,671,902,561.92
  5. Step 5: Solve for x
    x = 213,671,902,561.92/389,629.20
  6. Step 6: Final answer
    x = 548,398.07

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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.