Finding the Fourth Proportional to 1,211,781.06, 1,672,257.96 and 702,778.68
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Solution
The fourth proportional to 1,211,781.06, 1,672,257.96 and 702,778.68 is: 969,834.63
Step by Step Solution
- Step 1: Write the proportion equation
1,211,781.06 : 1,672,257.96 = 702,778.68 : x - Step 2: Convert to fraction form
1,211,781.06/1,672,257.96 = 702,778.68/x - Step 3: Cross multiply
1,211,781.06x = 1,672,257.96 × 702,778.68 - Step 4: Simplify right side
1,211,781.06x = 1,175,227,241,748.29 - Step 5: Solve for x
x = 1,175,227,241,748.29/1,211,781.06 - Step 6: Final answer
x = 969,834.63
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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.