Finding the Fourth Proportional to 665,750.37, 918,477.31 and 423,989.67
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Solution
The fourth proportional to 665,750.37, 918,477.31 and 423,989.67 is: 584,941.31
Step by Step Solution
- Step 1: Write the proportion equation
665,750.37 : 918,477.31 = 423,989.67 : x - Step 2: Convert to fraction form
665,750.37/918,477.31 = 423,989.67/x - Step 3: Cross multiply
665,750.37x = 918,477.31 × 423,989.67 - Step 4: Simplify right side
665,750.37x = 389,424,891,569.39 - Step 5: Solve for x
x = 389,424,891,569.39/665,750.37 - Step 6: Final answer
x = 584,941.31
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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.