Finding the Fourth Proportional to 1,012,873.63, 1,397,709.08 and 553,897.63
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Solution
The fourth proportional to 1,012,873.63, 1,397,709.08 and 553,897.63 is: 764,347.81
Step by Step Solution
- Step 1: Write the proportion equation
1,012,873.63 : 1,397,709.08 = 553,897.63 : x - Step 2: Convert to fraction form
1,012,873.63/1,397,709.08 = 553,897.63/x - Step 3: Cross multiply
1,012,873.63x = 1,397,709.08 × 553,897.63 - Step 4: Simplify right side
1,012,873.63x = 774,187,744,071.99 - Step 5: Solve for x
x = 774,187,744,071.99/1,012,873.63 - Step 6: Final answer
x = 764,347.81
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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.