Finding the Fourth Proportional to 1,283,284.72, 1,771,122.78 and 739,317.08
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Solution
The fourth proportional to 1,283,284.72, 1,771,122.78 and 739,317.08 is: 1,020,366.95
Step by Step Solution
- Step 1: Write the proportion equation
1,283,284.72 : 1,771,122.78 = 739,317.08 : x - Step 2: Convert to fraction form
1,283,284.72/1,771,122.78 = 739,317.08/x - Step 3: Cross multiply
1,283,284.72x = 1,771,122.78 × 739,317.08 - Step 4: Simplify right side
1,283,284.72x = 1,309,421,322,031.08 - Step 5: Solve for x
x = 1,309,421,322,031.08/1,283,284.72 - Step 6: Final answer
x = 1,020,366.95
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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.