Finding the Fourth Proportional to 1,830,638.64, 2,746,415.34 and 1,291,946.74
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Solution
The fourth proportional to 1,830,638.64, 2,746,415.34 and 1,291,946.74 is: 1,938,242.90
Step by Step Solution
- Step 1: Write the proportion equation
1,830,638.64 : 2,746,415.34 = 1,291,946.74 : x - Step 2: Convert to fraction form
1,830,638.64/2,746,415.34 = 1,291,946.74/x - Step 3: Cross multiply
1,830,638.64x = 2,746,415.34 × 1,291,946.74 - Step 4: Simplify right side
1,830,638.64x = 3,548,222,345,198.99 - Step 5: Solve for x
x = 3,548,222,345,198.99/1,830,638.64 - Step 6: Final answer
x = 1,938,242.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.