Finding the Fourth Proportional to 1,125,606.42, 1,553,028.93 and 723,431.70
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Solution
The fourth proportional to 1,125,606.42, 1,553,028.93 and 723,431.70 is: 998,137.84
Step by Step Solution
- Step 1: Write the proportion equation
1,125,606.42 : 1,553,028.93 = 723,431.70 : x - Step 2: Convert to fraction form
1,125,606.42/1,553,028.93 = 723,431.70/x - Step 3: Cross multiply
1,125,606.42x = 1,553,028.93 × 723,431.70 - Step 4: Simplify right side
1,125,606.42x = 1,123,510,358,979.08 - Step 5: Solve for x
x = 1,123,510,358,979.08/1,125,606.42 - Step 6: Final answer
x = 998,137.84
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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.