Finding the Fourth Proportional to 1,641,931.05, 2,264,617.95 and 1,412,872.19
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Solution
The fourth proportional to 1,641,931.05, 2,264,617.95 and 1,412,872.19 is: 1,948,690.67
Step by Step Solution
- Step 1: Write the proportion equation
1,641,931.05 : 2,264,617.95 = 1,412,872.19 : x - Step 2: Convert to fraction form
1,641,931.05/2,264,617.95 = 1,412,872.19/x - Step 3: Cross multiply
1,641,931.05x = 2,264,617.95 × 1,412,872.19 - Step 4: Simplify right side
1,641,931.05x = 3,199,615,722,529.81 - Step 5: Solve for x
x = 3,199,615,722,529.81/1,641,931.05 - Step 6: Final answer
x = 1,948,690.67
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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.