Home / 743,820.40-1,115,730.60-444,638.80

Finding the Fourth Proportional to 743,820.40, 1,115,730.60 and 444,638.80

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Solution

The fourth proportional to 743,820.40, 1,115,730.60 and 444,638.80 is: 666,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,820.40 : 1,115,730.60 = 444,638.80 : x
  2. Step 2: Convert to fraction form
    743,820.40/1,115,730.60 = 444,638.80/x
  3. Step 3: Cross multiply
    743,820.40x = 1,115,730.60 × 444,638.80
  4. Step 4: Simplify right side
    743,820.40x = 496,097,115,107.28
  5. Step 5: Solve for x
    x = 496,097,115,107.28/743,820.40
  6. Step 6: Final answer
    x = 666,958.20

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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.