Home / 779,629.20-1,169,881.20-330,273.60

Finding the Fourth Proportional to 779,629.20, 1,169,881.20 and 330,273.60

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Solution

The fourth proportional to 779,629.20, 1,169,881.20 and 330,273.60 is: 495,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,629.20 : 1,169,881.20 = 330,273.60 : x
  2. Step 2: Convert to fraction form
    779,629.20/1,169,881.20 = 330,273.60/x
  3. Step 3: Cross multiply
    779,629.20x = 1,169,881.20 × 330,273.60
  4. Step 4: Simplify right side
    779,629.20x = 386,380,875,496.32
  5. Step 5: Solve for x
    x = 386,380,875,496.32/779,629.20
  6. Step 6: Final answer
    x = 495,595.70

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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.