Finding the Fourth Proportional to 2,158,015.97, 2,976,987.23 and 1,506,009.31
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Solution
The fourth proportional to 2,158,015.97, 2,976,987.23 and 1,506,009.31 is: 2,077,542.77
Step by Step Solution
- Step 1: Write the proportion equation
2,158,015.97 : 2,976,987.23 = 1,506,009.31 : x - Step 2: Convert to fraction form
2,158,015.97/2,976,987.23 = 1,506,009.31/x - Step 3: Cross multiply
2,158,015.97x = 2,976,987.23 × 1,506,009.31 - Step 4: Simplify right side
2,158,015.97x = 4,483,370,474,806.13 - Step 5: Solve for x
x = 4,483,370,474,806.13/2,158,015.97 - Step 6: Final answer
x = 2,077,542.77
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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.