Finding the Fourth Proportional to 2,121,142.79, 2,927,238.11 and 1,154,334.35
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Solution
The fourth proportional to 2,121,142.79, 2,927,238.11 and 1,154,334.35 is: 1,593,014.63
Step by Step Solution
- Step 1: Write the proportion equation
2,121,142.79 : 2,927,238.11 = 1,154,334.35 : x - Step 2: Convert to fraction form
2,121,142.79/2,927,238.11 = 1,154,334.35/x - Step 3: Cross multiply
2,121,142.79x = 2,927,238.11 × 1,154,334.35 - Step 4: Simplify right side
2,121,142.79x = 3,379,011,480,594.22 - Step 5: Solve for x
x = 3,379,011,480,594.22/2,121,142.79 - Step 6: Final answer
x = 1,593,014.63
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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.