Finding the Fourth Proportional to 1,963,088.20, 2,709,015.06 and 1,284,010.12
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Solution
The fourth proportional to 1,963,088.20, 2,709,015.06 and 1,284,010.12 is: 1,771,903.45
Step by Step Solution
- Step 1: Write the proportion equation
1,963,088.20 : 2,709,015.06 = 1,284,010.12 : x - Step 2: Convert to fraction form
1,963,088.20/2,709,015.06 = 1,284,010.12/x - Step 3: Cross multiply
1,963,088.20x = 2,709,015.06 × 1,284,010.12 - Step 4: Simplify right side
1,963,088.20x = 3,478,402,752,272.41 - Step 5: Solve for x
x = 3,478,402,752,272.41/1,963,088.20 - Step 6: Final answer
x = 1,771,903.45
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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.