Home / 698,321.02-1,047,460.80-192,912.40

Finding the Fourth Proportional to 698,321.02, 1,047,460.80 and 192,912.40

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Solution

The fourth proportional to 698,321.02, 1,047,460.80 and 192,912.40 is: 289,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,321.02 : 1,047,460.80 = 192,912.40 : x
  2. Step 2: Convert to fraction form
    698,321.02/1,047,460.80 = 192,912.40/x
  3. Step 3: Cross multiply
    698,321.02x = 1,047,460.80 × 192,912.40
  4. Step 4: Simplify right side
    698,321.02x = 202,068,176,833.92
  5. Step 5: Solve for x
    x = 202,068,176,833.92/698,321.02
  6. Step 6: Final answer
    x = 289,362.87

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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.