Finding the Fourth Proportional to 656,534.70, 906,017.67 and 354,728.70
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Solution
The fourth proportional to 656,534.70, 906,017.67 and 354,728.70 is: 489,525.49
Step by Step Solution
- Step 1: Write the proportion equation
656,534.70 : 906,017.67 = 354,728.70 : x - Step 2: Convert to fraction form
656,534.70/906,017.67 = 354,728.70/x - Step 3: Cross multiply
656,534.70x = 906,017.67 × 354,728.70 - Step 4: Simplify right side
656,534.70x = 321,390,470,256.13 - Step 5: Solve for x
x = 321,390,470,256.13/656,534.70 - Step 6: Final answer
x = 489,525.49
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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.