Home / 746,440.80-1,119,661.20-613,471.20

Finding the Fourth Proportional to 746,440.80, 1,119,661.20 and 613,471.20

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Solution

The fourth proportional to 746,440.80, 1,119,661.20 and 613,471.20 is: 920,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,440.80 : 1,119,661.20 = 613,471.20 : x
  2. Step 2: Convert to fraction form
    746,440.80/1,119,661.20 = 613,471.20/x
  3. Step 3: Cross multiply
    746,440.80x = 1,119,661.20 × 613,471.20
  4. Step 4: Simplify right side
    746,440.80x = 686,879,899,957.44
  5. Step 5: Solve for x
    x = 686,879,899,957.44/746,440.80
  6. Step 6: Final answer
    x = 920,206.80

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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.