Home / 743,621.50-1,120,431.58-672,624.19

Finding the Fourth Proportional to 743,621.50, 1,120,431.58 and 672,624.19

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Solution

The fourth proportional to 743,621.50, 1,120,431.58 and 672,624.19 is: 1,013,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,621.50 : 1,120,431.58 = 672,624.19 : x
  2. Step 2: Convert to fraction form
    743,621.50/1,120,431.58 = 672,624.19/x
  3. Step 3: Cross multiply
    743,621.50x = 1,120,431.58 × 672,624.19
  4. Step 4: Simplify right side
    743,621.50x = 753,629,383,947.92
  5. Step 5: Solve for x
    x = 753,629,383,947.92/743,621.50
  6. Step 6: Final answer
    x = 1,013,458.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.