Finding the Fourth Proportional to 634,778.40, 875,964.88 and 348,291.36
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Solution
The fourth proportional to 634,778.40, 875,964.88 and 348,291.36 is: 480,625.99
Step by Step Solution
- Step 1: Write the proportion equation
634,778.40 : 875,964.88 = 348,291.36 : x - Step 2: Convert to fraction form
634,778.40/875,964.88 = 348,291.36/x - Step 3: Cross multiply
634,778.40x = 875,964.88 × 348,291.36 - Step 4: Simplify right side
634,778.40x = 305,090,999,367.44 - Step 5: Solve for x
x = 305,090,999,367.44/634,778.40 - Step 6: Final answer
x = 480,625.99
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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.