Finding the Fourth Proportional to 1,778,515.80, 2,667,773.70 and 781,243.80
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Solution
The fourth proportional to 1,778,515.80, 2,667,773.70 and 781,243.80 is: 1,171,865.70
Step by Step Solution
- Step 1: Write the proportion equation
1,778,515.80 : 2,667,773.70 = 781,243.80 : x - Step 2: Convert to fraction form
1,778,515.80/2,667,773.70 = 781,243.80/x - Step 3: Cross multiply
1,778,515.80x = 2,667,773.70 × 781,243.80 - Step 4: Simplify right side
1,778,515.80x = 2,084,181,662,928.06 - Step 5: Solve for x
x = 2,084,181,662,928.06/1,778,515.80 - Step 6: Final answer
x = 1,171,865.70
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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.