Home / 698,735.60-1,047,981.80-225,420.96

Finding the Fourth Proportional to 698,735.60, 1,047,981.80 and 225,420.96

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Solution

The fourth proportional to 698,735.60, 1,047,981.80 and 225,420.96 is: 338,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,735.60 : 1,047,981.80 = 225,420.96 : x
  2. Step 2: Convert to fraction form
    698,735.60/1,047,981.80 = 225,420.96/x
  3. Step 3: Cross multiply
    698,735.60x = 1,047,981.80 × 225,420.96
  4. Step 4: Simplify right side
    698,735.60x = 236,237,063,418.53
  5. Step 5: Solve for x
    x = 236,237,063,418.53/698,735.60
  6. Step 6: Final answer
    x = 338,092.21

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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.