Finding the Fourth Proportional to 1,913,055.33, 2,640,135.75 and 1,053,615.36
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Solution
The fourth proportional to 1,913,055.33, 2,640,135.75 and 1,053,615.36 is: 1,454,054.95
Step by Step Solution
- Step 1: Write the proportion equation
1,913,055.33 : 2,640,135.75 = 1,053,615.36 : x - Step 2: Convert to fraction form
1,913,055.33/2,640,135.75 = 1,053,615.36/x - Step 3: Cross multiply
1,913,055.33x = 2,640,135.75 × 1,053,615.36 - Step 4: Simplify right side
1,913,055.33x = 2,781,687,578,685.12 - Step 5: Solve for x
x = 2,781,687,578,685.12/1,913,055.33 - Step 6: Final answer
x = 1,454,054.95
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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.