Finding the Fourth Proportional to 1,342,990.62, 1,854,011.70 and 1,036,378.08
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Solution
The fourth proportional to 1,342,990.62, 1,854,011.70 and 1,036,378.08 is: 1,430,730.09
Step by Step Solution
- Step 1: Write the proportion equation
1,342,990.62 : 1,854,011.70 = 1,036,378.08 : x - Step 2: Convert to fraction form
1,342,990.62/1,854,011.70 = 1,036,378.08/x - Step 3: Cross multiply
1,342,990.62x = 1,854,011.70 × 1,036,378.08 - Step 4: Simplify right side
1,342,990.62x = 1,921,457,085,943.54 - Step 5: Solve for x
x = 1,921,457,085,943.54/1,342,990.62 - Step 6: Final answer
x = 1,430,730.09
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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.