Home / 743,820.60-1,115,730.90-238,380.60

Finding the Fourth Proportional to 743,820.60, 1,115,730.90 and 238,380.60

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Solution

The fourth proportional to 743,820.60, 1,115,730.90 and 238,380.60 is: 357,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,820.60 : 1,115,730.90 = 238,380.60 : x
  2. Step 2: Convert to fraction form
    743,820.60/1,115,730.90 = 238,380.60/x
  3. Step 3: Cross multiply
    743,820.60x = 1,115,730.90 × 238,380.60
  4. Step 4: Simplify right side
    743,820.60x = 265,968,601,380.54
  5. Step 5: Solve for x
    x = 265,968,601,380.54/743,820.60
  6. Step 6: Final answer
    x = 357,570.90

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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.