Finding the Fourth Proportional to 1,442,172.02, 1,990,116.86 and 788,669.08
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Solution
The fourth proportional to 1,442,172.02, 1,990,116.86 and 788,669.08 is: 1,088,319.29
Step by Step Solution
- Step 1: Write the proportion equation
1,442,172.02 : 1,990,116.86 = 788,669.08 : x - Step 2: Convert to fraction form
1,442,172.02/1,990,116.86 = 788,669.08/x - Step 3: Cross multiply
1,442,172.02x = 1,990,116.86 × 788,669.08 - Step 4: Simplify right side
1,442,172.02x = 1,569,543,624,150.05 - Step 5: Solve for x
x = 1,569,543,624,150.05/1,442,172.02 - Step 6: Final answer
x = 1,088,319.29
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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.