Home / 1,389,533.60-2,084,415.60-442,877.60

Finding the Fourth Proportional to 1,389,533.60, 2,084,415.60 and 442,877.60

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Solution

The fourth proportional to 1,389,533.60, 2,084,415.60 and 442,877.60 is: 664,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,533.60 : 2,084,415.60 = 442,877.60 : x
  2. Step 2: Convert to fraction form
    1,389,533.60/2,084,415.60 = 442,877.60/x
  3. Step 3: Cross multiply
    1,389,533.60x = 2,084,415.60 × 442,877.60
  4. Step 4: Simplify right side
    1,389,533.60x = 923,140,978,330.56
  5. Step 5: Solve for x
    x = 923,140,978,330.56/1,389,533.60
  6. Step 6: Final answer
    x = 664,353.12

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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.