Finding the Fourth Proportional to 1,159,306.24, 1,599,804.80 and 643,057.92
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Solution
The fourth proportional to 1,159,306.24, 1,599,804.80 and 643,057.92 is: 887,398.96
Step by Step Solution
- Step 1: Write the proportion equation
1,159,306.24 : 1,599,804.80 = 643,057.92 : x - Step 2: Convert to fraction form
1,159,306.24/1,599,804.80 = 643,057.92/x - Step 3: Cross multiply
1,159,306.24x = 1,599,804.80 × 643,057.92 - Step 4: Simplify right side
1,159,306.24x = 1,028,767,147,094.02 - Step 5: Solve for x
x = 1,028,767,147,094.02/1,159,306.24 - Step 6: Final answer
x = 887,398.96
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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.