Finding the Fourth Proportional to 1,989,899.30, 2,746,070.28 and 1,130,506.70
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Solution
The fourth proportional to 1,989,899.30, 2,746,070.28 and 1,130,506.70 is: 1,560,104.50
Step by Step Solution
- Step 1: Write the proportion equation
1,989,899.30 : 2,746,070.28 = 1,130,506.70 : x - Step 2: Convert to fraction form
1,989,899.30/2,746,070.28 = 1,130,506.70/x - Step 3: Cross multiply
1,989,899.30x = 2,746,070.28 × 1,130,506.70 - Step 4: Simplify right side
1,989,899.30x = 3,104,450,850,210.88 - Step 5: Solve for x
x = 3,104,450,850,210.88/1,989,899.30 - Step 6: Final answer
x = 1,560,104.50
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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.