Finding the Fourth Proportional to 1,211,307.16, 1,671,581.84 and 667,493.14
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Solution
The fourth proportional to 1,211,307.16, 1,671,581.84 and 667,493.14 is: 921,128.39
Step by Step Solution
- Step 1: Write the proportion equation
1,211,307.16 : 1,671,581.84 = 667,493.14 : x - Step 2: Convert to fraction form
1,211,307.16/1,671,581.84 = 667,493.14/x - Step 3: Cross multiply
1,211,307.16x = 1,671,581.84 × 667,493.14 - Step 4: Simplify right side
1,211,307.16x = 1,115,769,411,148.58 - Step 5: Solve for x
x = 1,115,769,411,148.58/1,211,307.16 - Step 6: Final answer
x = 921,128.39
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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.