Finding the Fourth Proportional to 1,428,118.18, 1,970,737.75 and 783,525.06
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Solution
The fourth proportional to 1,428,118.18, 1,970,737.75 and 783,525.06 is: 1,081,228.74
Step by Step Solution
- Step 1: Write the proportion equation
1,428,118.18 : 1,970,737.75 = 783,525.06 : x - Step 2: Convert to fraction form
1,428,118.18/1,970,737.75 = 783,525.06/x - Step 3: Cross multiply
1,428,118.18x = 1,970,737.75 × 783,525.06 - Step 4: Simplify right side
1,428,118.18x = 1,544,122,413,813.02 - Step 5: Solve for x
x = 1,544,122,413,813.02/1,428,118.18 - Step 6: Final answer
x = 1,081,228.74
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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.