Finding the Fourth Proportional to 1,403,722.47, 1,937,142.81 and 759,142.65
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Solution
The fourth proportional to 1,403,722.47, 1,937,142.81 and 759,142.65 is: 1,047,619.99
Step by Step Solution
- Step 1: Write the proportion equation
1,403,722.47 : 1,937,142.81 = 759,142.65 : x - Step 2: Convert to fraction form
1,403,722.47/1,937,142.81 = 759,142.65/x - Step 3: Cross multiply
1,403,722.47x = 1,937,142.81 × 759,142.65 - Step 4: Simplify right side
1,403,722.47x = 1,470,567,726,211.85 - Step 5: Solve for x
x = 1,470,567,726,211.85/1,403,722.47 - Step 6: Final answer
x = 1,047,619.99
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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.