Finding the Fourth Proportional to 3,174,670.29, 4,381,080.51 and 1,868,211.18
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Solution
The fourth proportional to 3,174,670.29, 4,381,080.51 and 1,868,211.18 is: 2,578,152.32
Step by Step Solution
- Step 1: Write the proportion equation
3,174,670.29 : 4,381,080.51 = 1,868,211.18 : x - Step 2: Convert to fraction form
3,174,670.29/4,381,080.51 = 1,868,211.18/x - Step 3: Cross multiply
3,174,670.29x = 4,381,080.51 × 1,868,211.18 - Step 4: Simplify right side
3,174,670.29x = 8,184,783,589,262.10 - Step 5: Solve for x
x = 8,184,783,589,262.10/3,174,670.29 - Step 6: Final answer
x = 2,578,152.32
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1.5x scale
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.