Finding the Fourth Proportional to 2,165,820.79, 2,988,867.93 and 1,185,743.28
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Solution
The fourth proportional to 2,165,820.79, 2,988,867.93 and 1,185,743.28 is: 1,636,345.02
Step by Step Solution
- Step 1: Write the proportion equation
2,165,820.79 : 2,988,867.93 = 1,185,743.28 : x - Step 2: Convert to fraction form
2,165,820.79/2,988,867.93 = 1,185,743.28/x - Step 3: Cross multiply
2,165,820.79x = 2,988,867.93 × 1,185,743.28 - Step 4: Simplify right side
2,165,820.79x = 3,544,030,062,805.01 - Step 5: Solve for x
x = 3,544,030,062,805.01/2,165,820.79 - Step 6: Final answer
x = 1,636,345.02
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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.