Finding the Fourth Proportional to 1,791,420.21, 2,472,229.85 and 1,017,123.08
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Solution
The fourth proportional to 1,791,420.21, 2,472,229.85 and 1,017,123.08 is: 1,403,669.56
Step by Step Solution
- Step 1: Write the proportion equation
1,791,420.21 : 2,472,229.85 = 1,017,123.08 : x - Step 2: Convert to fraction form
1,791,420.21/2,472,229.85 = 1,017,123.08/x - Step 3: Cross multiply
1,791,420.21x = 2,472,229.85 × 1,017,123.08 - Step 4: Simplify right side
1,791,420.21x = 2,514,562,022,053.17 - Step 5: Solve for x
x = 2,514,562,022,053.17/1,791,420.21 - Step 6: Final answer
x = 1,403,669.56
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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.