Finding the Fourth Proportional to 1,577,179.20, 2,365,768.80 and 1,328,347.20
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Solution
The fourth proportional to 1,577,179.20, 2,365,768.80 and 1,328,347.20 is: 1,992,520.80
Step by Step Solution
- Step 1: Write the proportion equation
1,577,179.20 : 2,365,768.80 = 1,328,347.20 : x - Step 2: Convert to fraction form
1,577,179.20/2,365,768.80 = 1,328,347.20/x - Step 3: Cross multiply
1,577,179.20x = 2,365,768.80 × 1,328,347.20 - Step 4: Simplify right side
1,577,179.20x = 3,142,562,361,327.36 - Step 5: Solve for x
x = 3,142,562,361,327.36/1,577,179.20 - Step 6: Final answer
x = 1,992,520.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.