Finding the Fourth Proportional to 1,415,725.58, 1,953,730.98 and 771,144.18
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Solution
The fourth proportional to 1,415,725.58, 1,953,730.98 and 771,144.18 is: 1,064,195.14
Step by Step Solution
- Step 1: Write the proportion equation
1,415,725.58 : 1,953,730.98 = 771,144.18 : x - Step 2: Convert to fraction form
1,415,725.58/1,953,730.98 = 771,144.18/x - Step 3: Cross multiply
1,415,725.58x = 1,953,730.98 × 771,144.18 - Step 4: Simplify right side
1,415,725.58x = 1,506,608,274,512.70 - Step 5: Solve for x
x = 1,506,608,274,512.70/1,415,725.58 - Step 6: Final answer
x = 1,064,195.14
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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.