Finding the Fourth Proportional to 1,356,974.79, 1,872,541.34 and 745,125.09
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Solution
The fourth proportional to 1,356,974.79, 1,872,541.34 and 745,125.09 is: 1,028,226.57
Step by Step Solution
- Step 1: Write the proportion equation
1,356,974.79 : 1,872,541.34 = 745,125.09 : x - Step 2: Convert to fraction form
1,356,974.79/1,872,541.34 = 745,125.09/x - Step 3: Cross multiply
1,356,974.79x = 1,872,541.34 × 745,125.09 - Step 4: Simplify right side
1,356,974.79x = 1,395,277,530,770.60 - Step 5: Solve for x
x = 1,395,277,530,770.60/1,356,974.79 - Step 6: Final answer
x = 1,028,226.57
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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.