Finding the Fourth Proportional to 1,615,669.36, 2,426,653.26 and 1,316,371.12
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Solution
The fourth proportional to 1,615,669.36, 2,426,653.26 and 1,316,371.12 is: 1,977,122.52
Step by Step Solution
- Step 1: Write the proportion equation
1,615,669.36 : 2,426,653.26 = 1,316,371.12 : x - Step 2: Convert to fraction form
1,615,669.36/2,426,653.26 = 1,316,371.12/x - Step 3: Cross multiply
1,615,669.36x = 2,426,653.26 × 1,316,371.12 - Step 4: Simplify right side
1,615,669.36x = 3,194,376,269,717.85 - Step 5: Solve for x
x = 3,194,376,269,717.85/1,615,669.36 - Step 6: Final answer
x = 1,977,122.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.