Home / 1,315,958.20-1,973,937.30-785,116.60

Finding the Fourth Proportional to 1,315,958.20, 1,973,937.30 and 785,116.60

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Solution

The fourth proportional to 1,315,958.20, 1,973,937.30 and 785,116.60 is: 1,177,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,958.20 : 1,973,937.30 = 785,116.60 : x
  2. Step 2: Convert to fraction form
    1,315,958.20/1,973,937.30 = 785,116.60/x
  3. Step 3: Cross multiply
    1,315,958.20x = 1,973,937.30 × 785,116.60
  4. Step 4: Simplify right side
    1,315,958.20x = 1,549,770,941,589.18
  5. Step 5: Solve for x
    x = 1,549,770,941,589.18/1,315,958.20
  6. Step 6: Final answer
    x = 1,177,674.90

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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.