Finding the Fourth Proportional to 1,009,943.19, 1,392,460.95 and 646,769.97
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Solution
The fourth proportional to 1,009,943.19, 1,392,460.95 and 646,769.97 is: 891,735.23
Step by Step Solution
- Step 1: Write the proportion equation
1,009,943.19 : 1,392,460.95 = 646,769.97 : x - Step 2: Convert to fraction form
1,009,943.19/1,392,460.95 = 646,769.97/x - Step 3: Cross multiply
1,009,943.19x = 1,392,460.95 × 646,769.97 - Step 4: Simplify right side
1,009,943.19x = 900,601,926,857.67 - Step 5: Solve for x
x = 900,601,926,857.67/1,009,943.19 - Step 6: Final answer
x = 891,735.23
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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.