Finding the Fourth Proportional to 419,390.29, 578,774.99 and 238,119.09
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Solution
The fourth proportional to 419,390.29, 578,774.99 and 238,119.09 is: 328,613.65
Step by Step Solution
- Step 1: Write the proportion equation
419,390.29 : 578,774.99 = 238,119.09 : x - Step 2: Convert to fraction form
419,390.29/578,774.99 = 238,119.09/x - Step 3: Cross multiply
419,390.29x = 578,774.99 × 238,119.09 - Step 4: Simplify right side
419,390.29x = 137,817,372,358.45 - Step 5: Solve for x
x = 137,817,372,358.45/419,390.29 - Step 6: Final answer
x = 328,613.65
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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.