Finding the Fourth Proportional to 1,379,976.55, 1,904,389.18 and 768,135.96
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Solution
The fourth proportional to 1,379,976.55, 1,904,389.18 and 768,135.96 is: 1,060,039.62
Step by Step Solution
- Step 1: Write the proportion equation
1,379,976.55 : 1,904,389.18 = 768,135.96 : x - Step 2: Convert to fraction form
1,379,976.55/1,904,389.18 = 768,135.96/x - Step 3: Cross multiply
1,379,976.55x = 1,904,389.18 × 768,135.96 - Step 4: Simplify right side
1,379,976.55x = 1,462,829,809,072.57 - Step 5: Solve for x
x = 1,462,829,809,072.57/1,379,976.55 - Step 6: Final answer
x = 1,060,039.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.