Finding the Fourth Proportional to 3,221,638.14, 4,445,766.63 and 1,771,332.06
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Solution
The fourth proportional to 3,221,638.14, 4,445,766.63 and 1,771,332.06 is: 2,444,386.56
Step by Step Solution
- Step 1: Write the proportion equation
3,221,638.14 : 4,445,766.63 = 1,771,332.06 : x - Step 2: Convert to fraction form
3,221,638.14/4,445,766.63 = 1,771,332.06/x - Step 3: Cross multiply
3,221,638.14x = 4,445,766.63 × 1,771,332.06 - Step 4: Simplify right side
3,221,638.14x = 7,874,928,962,997.16 - Step 5: Solve for x
x = 7,874,928,962,997.16/3,221,638.14 - Step 6: Final answer
x = 2,444,386.56
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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.