Finding the Fourth Proportional to 446,342.36, 615,646.68 and 285,125.84
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Solution
The fourth proportional to 446,342.36, 615,646.68 and 285,125.84 is: 393,278.33
Step by Step Solution
- Step 1: Write the proportion equation
446,342.36 : 615,646.68 = 285,125.84 : x - Step 2: Convert to fraction form
446,342.36/615,646.68 = 285,125.84/x - Step 3: Cross multiply
446,342.36x = 615,646.68 × 285,125.84 - Step 4: Simplify right side
446,342.36x = 175,536,776,778.21 - Step 5: Solve for x
x = 175,536,776,778.21/446,342.36 - Step 6: Final answer
x = 393,278.33
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1.5x scale
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.