Finding the Fourth Proportional to 698,448.16, 963,865.20 and 396,644.32
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Solution
The fourth proportional to 698,448.16, 963,865.20 and 396,644.32 is: 547,372.99
Step by Step Solution
- Step 1: Write the proportion equation
698,448.16 : 963,865.20 = 396,644.32 : x - Step 2: Convert to fraction form
698,448.16/963,865.20 = 396,644.32/x - Step 3: Cross multiply
698,448.16x = 963,865.20 × 396,644.32 - Step 4: Simplify right side
698,448.16x = 382,311,656,825.66 - Step 5: Solve for x
x = 382,311,656,825.66/698,448.16 - Step 6: Final answer
x = 547,372.99
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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.