Finding the Fourth Proportional to 917,701.80, 1,376,552.70 and 664,447.20
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Solution
The fourth proportional to 917,701.80, 1,376,552.70 and 664,447.20 is: 996,670.80
Step by Step Solution
- Step 1: Write the proportion equation
917,701.80 : 1,376,552.70 = 664,447.20 : x - Step 2: Convert to fraction form
917,701.80/1,376,552.70 = 664,447.20/x - Step 3: Cross multiply
917,701.80x = 1,376,552.70 × 664,447.20 - Step 4: Simplify right side
917,701.80x = 914,646,587,167.44 - Step 5: Solve for x
x = 914,646,587,167.44/917,701.80 - Step 6: Final answer
x = 996,670.80
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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.