Finding the Fourth Proportional to 1,440,393.64, 1,987,951.44 and 859,641.44
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Solution
The fourth proportional to 1,440,393.64, 1,987,951.44 and 859,641.44 is: 1,186,429.45
Step by Step Solution
- Step 1: Write the proportion equation
1,440,393.64 : 1,987,951.44 = 859,641.44 : x - Step 2: Convert to fraction form
1,440,393.64/1,987,951.44 = 859,641.44/x - Step 3: Cross multiply
1,440,393.64x = 1,987,951.44 × 859,641.44 - Step 4: Simplify right side
1,440,393.64x = 1,708,925,438,531.67 - Step 5: Solve for x
x = 1,708,925,438,531.67/1,440,393.64 - Step 6: Final answer
x = 1,186,429.45
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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.