Home / 746,640.40-1,119,960.60-409,550.80

Finding the Fourth Proportional to 746,640.40, 1,119,960.60 and 409,550.80

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Solution

The fourth proportional to 746,640.40, 1,119,960.60 and 409,550.80 is: 614,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,640.40 : 1,119,960.60 = 409,550.80 : x
  2. Step 2: Convert to fraction form
    746,640.40/1,119,960.60 = 409,550.80/x
  3. Step 3: Cross multiply
    746,640.40x = 1,119,960.60 × 409,550.80
  4. Step 4: Simplify right side
    746,640.40x = 458,680,759,698.48
  5. Step 5: Solve for x
    x = 458,680,759,698.48/746,640.40
  6. Step 6: Final answer
    x = 614,326.20

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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.