Finding the Fourth Proportional to 1,280,690.93, 1,767,202.99 and 707,696.93
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Solution
The fourth proportional to 1,280,690.93, 1,767,202.99 and 707,696.93 is: 976,538.60
Step by Step Solution
- Step 1: Write the proportion equation
1,280,690.93 : 1,767,202.99 = 707,696.93 : x - Step 2: Convert to fraction form
1,280,690.93/1,767,202.99 = 707,696.93/x - Step 3: Cross multiply
1,280,690.93x = 1,767,202.99 × 707,696.93 - Step 4: Simplify right side
1,280,690.93x = 1,250,644,133,358.59 - Step 5: Solve for x
x = 1,250,644,133,358.59/1,280,690.93 - Step 6: Final answer
x = 976,538.60
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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.