Finding the Fourth Proportional to 1,201,442.10, 1,657,811.75 and 729,704.38
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Solution
The fourth proportional to 1,201,442.10, 1,657,811.75 and 729,704.38 is: 1,006,883.72
Step by Step Solution
- Step 1: Write the proportion equation
1,201,442.10 : 1,657,811.75 = 729,704.38 : x - Step 2: Convert to fraction form
1,201,442.10/1,657,811.75 = 729,704.38/x - Step 3: Cross multiply
1,201,442.10x = 1,657,811.75 × 729,704.38 - Step 4: Simplify right side
1,201,442.10x = 1,209,712,495,190.47 - Step 5: Solve for x
x = 1,209,712,495,190.47/1,201,442.10 - Step 6: Final answer
x = 1,006,883.72
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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.