Finding the Fourth Proportional to 1,489,448.17, 2,055,438.39 and 810,389.53
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Solution
The fourth proportional to 1,489,448.17, 2,055,438.39 and 810,389.53 is: 1,118,337.51
Step by Step Solution
- Step 1: Write the proportion equation
1,489,448.17 : 2,055,438.39 = 810,389.53 : x - Step 2: Convert to fraction form
1,489,448.17/2,055,438.39 = 810,389.53/x - Step 3: Cross multiply
1,489,448.17x = 2,055,438.39 × 810,389.53 - Step 4: Simplify right side
1,489,448.17x = 1,665,705,750,816.06 - Step 5: Solve for x
x = 1,665,705,750,816.06/1,489,448.17 - Step 6: Final answer
x = 1,118,337.51
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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.