Finding the Fourth Proportional to 2,166,611.04, 2,989,921.36 and 1,199,741.28
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Solution
The fourth proportional to 2,166,611.04, 2,989,921.36 and 1,199,741.28 is: 1,655,641.93
Step by Step Solution
- Step 1: Write the proportion equation
2,166,611.04 : 2,989,921.36 = 1,199,741.28 : x - Step 2: Convert to fraction form
2,166,611.04/2,989,921.36 = 1,199,741.28/x - Step 3: Cross multiply
2,166,611.04x = 2,989,921.36 × 1,199,741.28 - Step 4: Simplify right side
2,166,611.04x = 3,587,132,079,545.74 - Step 5: Solve for x
x = 3,587,132,079,545.74/2,166,611.04 - Step 6: Final answer
x = 1,655,641.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.