Finding the Fourth Proportional to 1,217,746.19, 1,680,517.14 and 788,772.96
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Solution
The fourth proportional to 1,217,746.19, 1,680,517.14 and 788,772.96 is: 1,088,524.44
Step by Step Solution
- Step 1: Write the proportion equation
1,217,746.19 : 1,680,517.14 = 788,772.96 : x - Step 2: Convert to fraction form
1,217,746.19/1,680,517.14 = 788,772.96/x - Step 3: Cross multiply
1,217,746.19x = 1,680,517.14 × 788,772.96 - Step 4: Simplify right side
1,217,746.19x = 1,325,546,478,848.53 - Step 5: Solve for x
x = 1,325,546,478,848.53/1,217,746.19 - Step 6: Final answer
x = 1,088,524.44
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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.