Finding the Fourth Proportional to 1,988,219.04, 2,743,819.94 and 1,128,859.26
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Solution
The fourth proportional to 1,988,219.04, 2,743,819.94 and 1,128,859.26 is: 1,557,869.87
Step by Step Solution
- Step 1: Write the proportion equation
1,988,219.04 : 2,743,819.94 = 1,128,859.26 : x - Step 2: Convert to fraction form
1,988,219.04/2,743,819.94 = 1,128,859.26/x - Step 3: Cross multiply
1,988,219.04x = 2,743,819.94 × 1,128,859.26 - Step 4: Simplify right side
1,988,219.04x = 3,097,386,547,041.64 - Step 5: Solve for x
x = 3,097,386,547,041.64/1,988,219.04 - Step 6: Final answer
x = 1,557,869.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.