Finding the Fourth Proportional to 910,207.42, 1,256,558.49 and 664,916.74
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Solution
The fourth proportional to 910,207.42, 1,256,558.49 and 664,916.74 is: 917,930.09
Step by Step Solution
- Step 1: Write the proportion equation
910,207.42 : 1,256,558.49 = 664,916.74 : x - Step 2: Convert to fraction form
910,207.42/1,256,558.49 = 664,916.74/x - Step 3: Cross multiply
910,207.42x = 1,256,558.49 × 664,916.74 - Step 4: Simplify right side
910,207.42x = 835,506,771,751.77 - Step 5: Solve for x
x = 835,506,771,751.77/910,207.42 - Step 6: Final answer
x = 917,930.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.