Home / 692,980.26-1,039,470.30-260,778.96

Finding the Fourth Proportional to 692,980.26, 1,039,470.30 and 260,778.96

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Solution

The fourth proportional to 692,980.26, 1,039,470.30 and 260,778.96 is: 391,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,980.26 : 1,039,470.30 = 260,778.96 : x
  2. Step 2: Convert to fraction form
    692,980.26/1,039,470.30 = 260,778.96/x
  3. Step 3: Cross multiply
    692,980.26x = 1,039,470.30 × 260,778.96
  4. Step 4: Simplify right side
    692,980.26x = 271,071,983,784.89
  5. Step 5: Solve for x
    x = 271,071,983,784.89/692,980.26
  6. Step 6: Final answer
    x = 391,168.41

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1.5x scale

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.