Finding the Fourth Proportional to 1,115,509.14, 1,539,242.37 and 656,350.74
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Solution
The fourth proportional to 1,115,509.14, 1,539,242.37 and 656,350.74 is: 905,669.74
Step by Step Solution
- Step 1: Write the proportion equation
1,115,509.14 : 1,539,242.37 = 656,350.74 : x - Step 2: Convert to fraction form
1,115,509.14/1,539,242.37 = 656,350.74/x - Step 3: Cross multiply
1,115,509.14x = 1,539,242.37 × 656,350.74 - Step 4: Simplify right side
1,115,509.14x = 1,010,282,868,588.85 - Step 5: Solve for x
x = 1,010,282,868,588.85/1,115,509.14 - Step 6: Final answer
x = 905,669.74
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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.