Finding the Fourth Proportional to 1,121,338.16, 1,549,470.84 and 798,487.76
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Solution
The fourth proportional to 1,121,338.16, 1,549,470.84 and 798,487.76 is: 1,103,354.50
Step by Step Solution
- Step 1: Write the proportion equation
1,121,338.16 : 1,549,470.84 = 798,487.76 : x - Step 2: Convert to fraction form
1,121,338.16/1,549,470.84 = 798,487.76/x - Step 3: Cross multiply
1,121,338.16x = 1,549,470.84 × 798,487.76 - Step 4: Simplify right side
1,121,338.16x = 1,237,233,500,216.92 - Step 5: Solve for x
x = 1,237,233,500,216.92/1,121,338.16 - Step 6: Final answer
x = 1,103,354.50
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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.