Home / 789,036.40-1,183,554.60-489,854.80

Finding the Fourth Proportional to 789,036.40, 1,183,554.60 and 489,854.80

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Solution

The fourth proportional to 789,036.40, 1,183,554.60 and 489,854.80 is: 734,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,036.40 : 1,183,554.60 = 489,854.80 : x
  2. Step 2: Convert to fraction form
    789,036.40/1,183,554.60 = 489,854.80/x
  3. Step 3: Cross multiply
    789,036.40x = 1,183,554.60 × 489,854.80
  4. Step 4: Simplify right side
    789,036.40x = 579,769,901,872.08
  5. Step 5: Solve for x
    x = 579,769,901,872.08/789,036.40
  6. Step 6: Final answer
    x = 734,782.20

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Half scale
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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.