Finding the Fourth Proportional to 1,421,454.35, 2,131,400.69 and 700,209.09
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Solution
The fourth proportional to 1,421,454.35, 2,131,400.69 and 700,209.09 is: 1,049,928.99
Step by Step Solution
- Step 1: Write the proportion equation
1,421,454.35 : 2,131,400.69 = 700,209.09 : x - Step 2: Convert to fraction form
1,421,454.35/2,131,400.69 = 700,209.09/x - Step 3: Cross multiply
1,421,454.35x = 2,131,400.69 × 700,209.09 - Step 4: Simplify right side
1,421,454.35x = 1,492,426,136,695.01 - Step 5: Solve for x
x = 1,492,426,136,695.01/1,421,454.35 - Step 6: Final answer
x = 1,049,928.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.