Finding the Fourth Proportional to 1,298,383.87, 1,791,759.97 and 717,646.54
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Solution
The fourth proportional to 1,298,383.87, 1,791,759.97 and 717,646.54 is: 990,346.82
Step by Step Solution
- Step 1: Write the proportion equation
1,298,383.87 : 1,791,759.97 = 717,646.54 : x - Step 2: Convert to fraction form
1,298,383.87/1,791,759.97 = 717,646.54/x - Step 3: Cross multiply
1,298,383.87x = 1,791,759.97 × 717,646.54 - Step 4: Simplify right side
1,298,383.87x = 1,285,850,342,981.00 - Step 5: Solve for x
x = 1,285,850,342,981.00/1,298,383.87 - Step 6: Final answer
x = 990,346.82
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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.