Finding the Fourth Proportional to 1,295,108.84, 1,788,378.18 and 812,503.64
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Solution
The fourth proportional to 1,295,108.84, 1,788,378.18 and 812,503.64 is: 1,121,962.68
Step by Step Solution
- Step 1: Write the proportion equation
1,295,108.84 : 1,788,378.18 = 812,503.64 : x - Step 2: Convert to fraction form
1,295,108.84/1,788,378.18 = 812,503.64/x - Step 3: Cross multiply
1,295,108.84x = 1,788,378.18 × 812,503.64 - Step 4: Simplify right side
1,295,108.84x = 1,453,063,780,946.58 - Step 5: Solve for x
x = 1,453,063,780,946.58/1,295,108.84 - Step 6: Final answer
x = 1,121,962.68
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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.