Finding the Fourth Proportional to 1,623,768.40, 2,435,652.60 and 782,405.20
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Solution
The fourth proportional to 1,623,768.40, 2,435,652.60 and 782,405.20 is: 1,173,607.80
Step by Step Solution
- Step 1: Write the proportion equation
1,623,768.40 : 2,435,652.60 = 782,405.20 : x - Step 2: Convert to fraction form
1,623,768.40/2,435,652.60 = 782,405.20/x - Step 3: Cross multiply
1,623,768.40x = 2,435,652.60 × 782,405.20 - Step 4: Simplify right side
1,623,768.40x = 1,905,667,259,633.52 - Step 5: Solve for x
x = 1,905,667,259,633.52/1,623,768.40 - Step 6: Final answer
x = 1,173,607.80
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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.