Finding the Fourth Proportional to 632,435.47, 872,621.10 and 387,471.99
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Solution
The fourth proportional to 632,435.47, 872,621.10 and 387,471.99 is: 534,625.67
Step by Step Solution
- Step 1: Write the proportion equation
632,435.47 : 872,621.10 = 387,471.99 : x - Step 2: Convert to fraction form
632,435.47/872,621.10 = 387,471.99/x - Step 3: Cross multiply
632,435.47x = 872,621.10 × 387,471.99 - Step 4: Simplify right side
632,435.47x = 338,116,234,132.99 - Step 5: Solve for x
x = 338,116,234,132.99/632,435.47 - Step 6: Final answer
x = 534,625.67
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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.