Home / 984,673.80-1,477,010.70-319,825.80

Finding the Fourth Proportional to 984,673.80, 1,477,010.70 and 319,825.80

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Solution

The fourth proportional to 984,673.80, 1,477,010.70 and 319,825.80 is: 479,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,673.80 : 1,477,010.70 = 319,825.80 : x
  2. Step 2: Convert to fraction form
    984,673.80/1,477,010.70 = 319,825.80/x
  3. Step 3: Cross multiply
    984,673.80x = 1,477,010.70 × 319,825.80
  4. Step 4: Simplify right side
    984,673.80x = 472,386,128,736.06
  5. Step 5: Solve for x
    x = 472,386,128,736.06/984,673.80
  6. Step 6: Final answer
    x = 479,738.70

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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.