Finding the Fourth Proportional to 1,421,181.99, 1,961,148.51 and 776,607.48
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Solution
The fourth proportional to 1,421,181.99, 1,961,148.51 and 776,607.48 is: 1,071,673.17
Step by Step Solution
- Step 1: Write the proportion equation
1,421,181.99 : 1,961,148.51 = 776,607.48 : x - Step 2: Convert to fraction form
1,421,181.99/1,961,148.51 = 776,607.48/x - Step 3: Cross multiply
1,421,181.99x = 1,961,148.51 × 776,607.48 - Step 4: Simplify right side
1,421,181.99x = 1,523,042,602,256.85 - Step 5: Solve for x
x = 1,523,042,602,256.85/1,421,181.99 - Step 6: Final answer
x = 1,071,673.17
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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.