Finding the Fourth Proportional to 1,916,867.07, 2,645,187.42 and 1,100,496.18
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Solution
The fourth proportional to 1,916,867.07, 2,645,187.42 and 1,100,496.18 is: 1,518,633.55
Step by Step Solution
- Step 1: Write the proportion equation
1,916,867.07 : 2,645,187.42 = 1,100,496.18 : x - Step 2: Convert to fraction form
1,916,867.07/2,645,187.42 = 1,100,496.18/x - Step 3: Cross multiply
1,916,867.07x = 2,645,187.42 × 1,100,496.18 - Step 4: Simplify right side
1,916,867.07x = 2,911,018,651,094.06 - Step 5: Solve for x
x = 2,911,018,651,094.06/1,916,867.07 - Step 6: Final answer
x = 1,518,633.55
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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.