Finding the Fourth Proportional to 838,440.91, 1,157,069.24 and 456,488.65
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Solution
The fourth proportional to 838,440.91, 1,157,069.24 and 456,488.65 is: 629,965.65
Step by Step Solution
- Step 1: Write the proportion equation
838,440.91 : 1,157,069.24 = 456,488.65 : x - Step 2: Convert to fraction form
838,440.91/1,157,069.24 = 456,488.65/x - Step 3: Cross multiply
838,440.91x = 1,157,069.24 × 456,488.65 - Step 4: Simplify right side
838,440.91x = 528,188,975,324.13 - Step 5: Solve for x
x = 528,188,975,324.13/838,440.91 - Step 6: Final answer
x = 629,965.65
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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.