Home / 1,277,150.49-1,915,725.74-330,518.48

Finding the Fourth Proportional to 1,277,150.49, 1,915,725.74 and 330,518.48

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Solution

The fourth proportional to 1,277,150.49, 1,915,725.74 and 330,518.48 is: 495,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,150.49 : 1,915,725.74 = 330,518.48 : x
  2. Step 2: Convert to fraction form
    1,277,150.49/1,915,725.74 = 330,518.48/x
  3. Step 3: Cross multiply
    1,277,150.49x = 1,915,725.74 × 330,518.48
  4. Step 4: Simplify right side
    1,277,150.49x = 633,182,748,450.45
  5. Step 5: Solve for x
    x = 633,182,748,450.45/1,277,150.49
  6. Step 6: Final answer
    x = 495,777.71

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Double scale
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Similar ratio
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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.