Finding the Fourth Proportional to 2,121,135.48, 2,927,228.58 and 1,154,328.12
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Solution
The fourth proportional to 2,121,135.48, 2,927,228.58 and 1,154,328.12 is: 1,593,006.34
Step by Step Solution
- Step 1: Write the proportion equation
2,121,135.48 : 2,927,228.58 = 1,154,328.12 : x - Step 2: Convert to fraction form
2,121,135.48/2,927,228.58 = 1,154,328.12/x - Step 3: Cross multiply
2,121,135.48x = 2,927,228.58 × 1,154,328.12 - Step 4: Simplify right side
2,121,135.48x = 3,378,982,263,561.67 - Step 5: Solve for x
x = 3,378,982,263,561.67/2,121,135.48 - Step 6: Final answer
x = 1,593,006.34
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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.