Finding the Fourth Proportional to 1,670,844.15, 2,306,808.86 and 1,148,454.09
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Solution
The fourth proportional to 1,670,844.15, 2,306,808.86 and 1,148,454.09 is: 1,585,584.19
Step by Step Solution
- Step 1: Write the proportion equation
1,670,844.15 : 2,306,808.86 = 1,148,454.09 : x - Step 2: Convert to fraction form
1,670,844.15/2,306,808.86 = 1,148,454.09/x - Step 3: Cross multiply
1,670,844.15x = 2,306,808.86 × 1,148,454.09 - Step 4: Simplify right side
1,670,844.15x = 2,649,264,064,372.97 - Step 5: Solve for x
x = 2,649,264,064,372.97/1,670,844.15 - Step 6: Final answer
x = 1,585,584.19
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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.