Finding the Fourth Proportional to 1,347,445.80, 2,021,168.70 and 869,148.90
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Solution
The fourth proportional to 1,347,445.80, 2,021,168.70 and 869,148.90 is: 1,303,723.35
Step by Step Solution
- Step 1: Write the proportion equation
1,347,445.80 : 2,021,168.70 = 869,148.90 : x - Step 2: Convert to fraction form
1,347,445.80/2,021,168.70 = 869,148.90/x - Step 3: Cross multiply
1,347,445.80x = 2,021,168.70 × 869,148.90 - Step 4: Simplify right side
1,347,445.80x = 1,756,696,552,319.43 - Step 5: Solve for x
x = 1,756,696,552,319.43/1,347,445.80 - Step 6: Final answer
x = 1,303,723.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.