Finding the Fourth Proportional to 782,688.15, 1,173,552.39 and 333,153.09
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Solution
The fourth proportional to 782,688.15, 1,173,552.39 and 333,153.09 is: 499,525.39
Step by Step Solution
- Step 1: Write the proportion equation
782,688.15 : 1,173,552.39 = 333,153.09 : x - Step 2: Convert to fraction form
782,688.15/1,173,552.39 = 333,153.09/x - Step 3: Cross multiply
782,688.15x = 1,173,552.39 × 333,153.09 - Step 4: Simplify right side
782,688.15x = 390,972,605,005.39 - Step 5: Solve for x
x = 390,972,605,005.39/782,688.15 - Step 6: Final answer
x = 499,525.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.