Finding the Fourth Proportional to 1,916,852.19, 2,645,263.41 and 1,057,400.07
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Solution
The fourth proportional to 1,916,852.19, 2,645,263.41 and 1,057,400.07 is: 1,459,216.17
Step by Step Solution
- Step 1: Write the proportion equation
1,916,852.19 : 2,645,263.41 = 1,057,400.07 : x - Step 2: Convert to fraction form
1,916,852.19/2,645,263.41 = 1,057,400.07/x - Step 3: Cross multiply
1,916,852.19x = 2,645,263.41 × 1,057,400.07 - Step 4: Simplify right side
1,916,852.19x = 2,797,101,714,902.44 - Step 5: Solve for x
x = 2,797,101,714,902.44/1,916,852.19 - Step 6: Final answer
x = 1,459,216.17
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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.