Finding the Fourth Proportional to 1,938,028.93, 2,674,479.92 and 1,078,792.17
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Solution
The fourth proportional to 1,938,028.93, 2,674,479.92 and 1,078,792.17 is: 1,488,733.19
Step by Step Solution
- Step 1: Write the proportion equation
1,938,028.93 : 2,674,479.92 = 1,078,792.17 : x - Step 2: Convert to fraction form
1,938,028.93/2,674,479.92 = 1,078,792.17/x - Step 3: Cross multiply
1,938,028.93x = 2,674,479.92 × 1,078,792.17 - Step 4: Simplify right side
1,938,028.93x = 2,885,207,996,518.23 - Step 5: Solve for x
x = 2,885,207,996,518.23/1,938,028.93 - Step 6: Final answer
x = 1,488,733.19
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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.