Home / 918,905.20-1,374,469.80-824,815.60

Finding the Fourth Proportional to 918,905.20, 1,374,469.80 and 824,815.60

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Solution

The fourth proportional to 918,905.20, 1,374,469.80 and 824,815.60 is: 1,233,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,905.20 : 1,374,469.80 = 824,815.60 : x
  2. Step 2: Convert to fraction form
    918,905.20/1,374,469.80 = 824,815.60/x
  3. Step 3: Cross multiply
    918,905.20x = 1,374,469.80 × 824,815.60
  4. Step 4: Simplify right side
    918,905.20x = 1,133,684,132,768.88
  5. Step 5: Solve for x
    x = 1,133,684,132,768.88/918,905.20
  6. Step 6: Final answer
    x = 1,233,733.50

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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.