Home / 692,366.22-1,038,445.44-218,990.07

Finding the Fourth Proportional to 692,366.22, 1,038,445.44 and 218,990.07

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Solution

The fourth proportional to 692,366.22, 1,038,445.44 and 218,990.07 is: 328,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,366.22 : 1,038,445.44 = 218,990.07 : x
  2. Step 2: Convert to fraction form
    692,366.22/1,038,445.44 = 218,990.07/x
  3. Step 3: Cross multiply
    692,366.22x = 1,038,445.44 × 218,990.07
  4. Step 4: Simplify right side
    692,366.22x = 227,409,239,596.78
  5. Step 5: Solve for x
    x = 227,409,239,596.78/692,366.22
  6. Step 6: Final answer
    x = 328,452.25

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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.