Finding the Fourth Proportional to 2,195,756.20, 3,029,781.98 and 1,379,381.68
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Solution
The fourth proportional to 2,195,756.20, 3,029,781.98 and 1,379,381.68 is: 1,903,319.57
Step by Step Solution
- Step 1: Write the proportion equation
2,195,756.20 : 3,029,781.98 = 1,379,381.68 : x - Step 2: Convert to fraction form
2,195,756.20/3,029,781.98 = 1,379,381.68/x - Step 3: Cross multiply
2,195,756.20x = 3,029,781.98 × 1,379,381.68 - Step 4: Simplify right side
2,195,756.20x = 4,179,225,750,501.21 - Step 5: Solve for x
x = 4,179,225,750,501.21/2,195,756.20 - Step 6: Final answer
x = 1,903,319.57
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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.