Finding the Fourth Proportional to 1,388,465.40, 2,084,625.36 and 715,027.68
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Solution
The fourth proportional to 1,388,465.40, 2,084,625.36 and 715,027.68 is: 1,073,534.01
Step by Step Solution
- Step 1: Write the proportion equation
1,388,465.40 : 2,084,625.36 = 715,027.68 : x - Step 2: Convert to fraction form
1,388,465.40/2,084,625.36 = 715,027.68/x - Step 3: Cross multiply
1,388,465.40x = 2,084,625.36 × 715,027.68 - Step 4: Simplify right side
1,388,465.40x = 1,490,564,834,829.97 - Step 5: Solve for x
x = 1,490,564,834,829.97/1,388,465.40 - Step 6: Final answer
x = 1,073,534.01
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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.