Finding the Fourth Proportional to 818,566.16, 1,129,655.36 and 455,990.00
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Solution
The fourth proportional to 818,566.16, 1,129,655.36 and 455,990.00 is: 629,285.17
Step by Step Solution
- Step 1: Write the proportion equation
818,566.16 : 1,129,655.36 = 455,990.00 : x - Step 2: Convert to fraction form
818,566.16/1,129,655.36 = 455,990.00/x - Step 3: Cross multiply
818,566.16x = 1,129,655.36 × 455,990.00 - Step 4: Simplify right side
818,566.16x = 515,111,543,098.10 - Step 5: Solve for x
x = 515,111,543,098.10/818,566.16 - Step 6: Final answer
x = 629,285.17
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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.