Home / 743,699.56-1,115,529.74-211,220.64

Finding the Fourth Proportional to 743,699.56, 1,115,529.74 and 211,220.64

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Solution

The fourth proportional to 743,699.56, 1,115,529.74 and 211,220.64 is: 316,825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,699.56 : 1,115,529.74 = 211,220.64 : x
  2. Step 2: Convert to fraction form
    743,699.56/1,115,529.74 = 211,220.64/x
  3. Step 3: Cross multiply
    743,699.56x = 1,115,529.74 × 211,220.64
  4. Step 4: Simplify right side
    743,699.56x = 235,622,905,621.83
  5. Step 5: Solve for x
    x = 235,622,905,621.83/743,699.56
  6. Step 6: Final answer
    x = 316,825.39

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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.