Finding the Fourth Proportional to 1,257,293.93, 1,886,397.12 and 776,961.90
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Solution
The fourth proportional to 1,257,293.93, 1,886,397.12 and 776,961.90 is: 1,165,724.79
Step by Step Solution
- Step 1: Write the proportion equation
1,257,293.93 : 1,886,397.12 = 776,961.90 : x - Step 2: Convert to fraction form
1,257,293.93/1,886,397.12 = 776,961.90/x - Step 3: Cross multiply
1,257,293.93x = 1,886,397.12 × 776,961.90 - Step 4: Simplify right side
1,257,293.93x = 1,465,658,690,509.73 - Step 5: Solve for x
x = 1,465,658,690,509.73/1,257,293.93 - Step 6: Final answer
x = 1,165,724.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.