Finding the Fourth Proportional to 1,284,939.81, 1,926,053.40 and 431,201.99
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Solution
The fourth proportional to 1,284,939.81, 1,926,053.40 and 431,201.99 is: 646,347.83
Step by Step Solution
- Step 1: Write the proportion equation
1,284,939.81 : 1,926,053.40 = 431,201.99 : x - Step 2: Convert to fraction form
1,284,939.81/1,926,053.40 = 431,201.99/x - Step 3: Cross multiply
1,284,939.81x = 1,926,053.40 × 431,201.99 - Step 4: Simplify right side
1,284,939.81x = 830,518,063,741.40 - Step 5: Solve for x
x = 830,518,063,741.40/1,284,939.81 - Step 6: Final answer
x = 646,347.83
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.