Finding the Fourth Proportional to 2,020,686.39, 2,792,194.86 and 1,438,899.48
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Solution
The fourth proportional to 2,020,686.39, 2,792,194.86 and 1,438,899.48 is: 1,988,278.71
Step by Step Solution
- Step 1: Write the proportion equation
2,020,686.39 : 2,792,194.86 = 1,438,899.48 : x - Step 2: Convert to fraction form
2,020,686.39/2,792,194.86 = 1,438,899.48/x - Step 3: Cross multiply
2,020,686.39x = 2,792,194.86 × 1,438,899.48 - Step 4: Simplify right side
2,020,686.39x = 4,017,687,732,112.67 - Step 5: Solve for x
x = 4,017,687,732,112.67/2,020,686.39 - Step 6: Final answer
x = 1,988,278.71
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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.