Home / 680,056.60-1,020,123.30-206,757.40

Finding the Fourth Proportional to 680,056.60, 1,020,123.30 and 206,757.40

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Solution

The fourth proportional to 680,056.60, 1,020,123.30 and 206,757.40 is: 310,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,056.60 : 1,020,123.30 = 206,757.40 : x
  2. Step 2: Convert to fraction form
    680,056.60/1,020,123.30 = 206,757.40/x
  3. Step 3: Cross multiply
    680,056.60x = 1,020,123.30 × 206,757.40
  4. Step 4: Simplify right side
    680,056.60x = 210,918,041,187.42
  5. Step 5: Solve for x
    x = 210,918,041,187.42/680,056.60
  6. Step 6: Final answer
    x = 310,147.77

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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.