Finding the Fourth Proportional to 1,452,487.80, 2,178,731.70 and 822,631.80
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Solution
The fourth proportional to 1,452,487.80, 2,178,731.70 and 822,631.80 is: 1,233,947.70
Step by Step Solution
- Step 1: Write the proportion equation
1,452,487.80 : 2,178,731.70 = 822,631.80 : x - Step 2: Convert to fraction form
1,452,487.80/2,178,731.70 = 822,631.80/x - Step 3: Cross multiply
1,452,487.80x = 2,178,731.70 × 822,631.80 - Step 4: Simplify right side
1,452,487.80x = 1,792,293,980,088.06 - Step 5: Solve for x
x = 1,792,293,980,088.06/1,452,487.80 - Step 6: Final answer
x = 1,233,947.70
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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.