Home / 692,220.60-1,038,233.70-218,953.80

Finding the Fourth Proportional to 692,220.60, 1,038,233.70 and 218,953.80

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Solution

The fourth proportional to 692,220.60, 1,038,233.70 and 218,953.80 is: 328,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,220.60 : 1,038,233.70 = 218,953.80 : x
  2. Step 2: Convert to fraction form
    692,220.60/1,038,233.70 = 218,953.80/x
  3. Step 3: Cross multiply
    692,220.60x = 1,038,233.70 × 218,953.80
  4. Step 4: Simplify right side
    692,220.60x = 227,325,213,903.06
  5. Step 5: Solve for x
    x = 227,325,213,903.06/692,220.60
  6. Step 6: Final answer
    x = 328,399.96

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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.