Finding the Fourth Proportional to 1,295,587.36, 1,787,913.68 and 722,664.64
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Solution
The fourth proportional to 1,295,587.36, 1,787,913.68 and 722,664.64 is: 997,278.95
Step by Step Solution
- Step 1: Write the proportion equation
1,295,587.36 : 1,787,913.68 = 722,664.64 : x - Step 2: Convert to fraction form
1,295,587.36/1,787,913.68 = 722,664.64/x - Step 3: Cross multiply
1,295,587.36x = 1,787,913.68 × 722,664.64 - Step 4: Simplify right side
1,295,587.36x = 1,292,061,995,908.28 - Step 5: Solve for x
x = 1,292,061,995,908.28/1,295,587.36 - Step 6: Final answer
x = 997,278.95
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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.