Finding the Fourth Proportional to 987,203.08, 1,478,831.46 and 453,993.40
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Solution
The fourth proportional to 987,203.08, 1,478,831.46 and 453,993.40 is: 680,082.69
Step by Step Solution
- Step 1: Write the proportion equation
987,203.08 : 1,478,831.46 = 453,993.40 : x - Step 2: Convert to fraction form
987,203.08/1,478,831.46 = 453,993.40/x - Step 3: Cross multiply
987,203.08x = 1,478,831.46 × 453,993.40 - Step 4: Simplify right side
987,203.08x = 671,379,722,552.36 - Step 5: Solve for x
x = 671,379,722,552.36/987,203.08 - Step 6: Final answer
x = 680,082.69
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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.