Home / 1,460,770.20-2,191,811.40-661,640.40

Finding the Fourth Proportional to 1,460,770.20, 2,191,811.40 and 661,640.40

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Solution

The fourth proportional to 1,460,770.20, 2,191,811.40 and 661,640.40 is: 992,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460,770.20 : 2,191,811.40 = 661,640.40 : x
  2. Step 2: Convert to fraction form
    1,460,770.20/2,191,811.40 = 661,640.40/x
  3. Step 3: Cross multiply
    1,460,770.20x = 2,191,811.40 × 661,640.40
  4. Step 4: Simplify right side
    1,460,770.20x = 1,450,190,971,420.56
  5. Step 5: Solve for x
    x = 1,450,190,971,420.56/1,460,770.20
  6. Step 6: Final answer
    x = 992,757.77

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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.