Finding the Fourth Proportional to 1,363,643.28, 1,881,410.70 and 790,569.09
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Solution
The fourth proportional to 1,363,643.28, 1,881,410.70 and 790,569.09 is: 1,090,743.57
Step by Step Solution
- Step 1: Write the proportion equation
1,363,643.28 : 1,881,410.70 = 790,569.09 : x - Step 2: Convert to fraction form
1,363,643.28/1,881,410.70 = 790,569.09/x - Step 3: Cross multiply
1,363,643.28x = 1,881,410.70 × 790,569.09 - Step 4: Simplify right side
1,363,643.28x = 1,487,385,145,015.26 - Step 5: Solve for x
x = 1,487,385,145,015.26/1,363,643.28 - Step 6: Final answer
x = 1,090,743.57
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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.