Finding the Fourth Proportional to 1,007,738.12, 1,390,614.80 and 555,029.12
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Solution
The fourth proportional to 1,007,738.12, 1,390,614.80 and 555,029.12 is: 765,905.04
Step by Step Solution
- Step 1: Write the proportion equation
1,007,738.12 : 1,390,614.80 = 555,029.12 : x - Step 2: Convert to fraction form
1,007,738.12/1,390,614.80 = 555,029.12/x - Step 3: Cross multiply
1,007,738.12x = 1,390,614.80 × 555,029.12 - Step 4: Simplify right side
1,007,738.12x = 771,831,708,702.98 - Step 5: Solve for x
x = 771,831,708,702.98/1,007,738.12 - Step 6: Final answer
x = 765,905.04
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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.