Finding the Fourth Proportional to 951,138.36, 1,312,355.34 and 645,256.44
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Solution
The fourth proportional to 951,138.36, 1,312,355.34 and 645,256.44 is: 890,307.63
Step by Step Solution
- Step 1: Write the proportion equation
951,138.36 : 1,312,355.34 = 645,256.44 : x - Step 2: Convert to fraction form
951,138.36/1,312,355.34 = 645,256.44/x - Step 3: Cross multiply
951,138.36x = 1,312,355.34 × 645,256.44 - Step 4: Simplify right side
951,138.36x = 846,805,734,703.39 - Step 5: Solve for x
x = 846,805,734,703.39/951,138.36 - Step 6: Final answer
x = 890,307.63
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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.