Home / 779,783.20-1,170,112.20-330,427.60

Finding the Fourth Proportional to 779,783.20, 1,170,112.20 and 330,427.60

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Solution

The fourth proportional to 779,783.20, 1,170,112.20 and 330,427.60 is: 495,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,783.20 : 1,170,112.20 = 330,427.60 : x
  2. Step 2: Convert to fraction form
    779,783.20/1,170,112.20 = 330,427.60/x
  3. Step 3: Cross multiply
    779,783.20x = 1,170,112.20 × 330,427.60
  4. Step 4: Simplify right side
    779,783.20x = 386,637,365,976.72
  5. Step 5: Solve for x
    x = 386,637,365,976.72/779,783.20
  6. Step 6: Final answer
    x = 495,826.75

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Double scale
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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.