Home / 739,684.74-1,109,558.79-290,503.02

Finding the Fourth Proportional to 739,684.74, 1,109,558.79 and 290,503.02

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Solution

The fourth proportional to 739,684.74, 1,109,558.79 and 290,503.02 is: 435,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,684.74 : 1,109,558.79 = 290,503.02 : x
  2. Step 2: Convert to fraction form
    739,684.74/1,109,558.79 = 290,503.02/x
  3. Step 3: Cross multiply
    739,684.74x = 1,109,558.79 × 290,503.02
  4. Step 4: Simplify right side
    739,684.74x = 322,330,179,362.55
  5. Step 5: Solve for x
    x = 322,330,179,362.55/739,684.74
  6. Step 6: Final answer
    x = 435,766.97

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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.