Finding the Fourth Proportional to 1,109,646.18, 1,531,311.21 and 626,312.70
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Solution
The fourth proportional to 1,109,646.18, 1,531,311.21 and 626,312.70 is: 864,311.23
Step by Step Solution
- Step 1: Write the proportion equation
1,109,646.18 : 1,531,311.21 = 626,312.70 : x - Step 2: Convert to fraction form
1,109,646.18/1,531,311.21 = 626,312.70/x - Step 3: Cross multiply
1,109,646.18x = 1,531,311.21 × 626,312.70 - Step 4: Simplify right side
1,109,646.18x = 959,079,658,475.37 - Step 5: Solve for x
x = 959,079,658,475.37/1,109,646.18 - Step 6: Final answer
x = 864,311.23
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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.