Finding the Fourth Proportional to 420,578.08, 630,712.08 and 330,796.48
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Solution
The fourth proportional to 420,578.08, 630,712.08 and 330,796.48 is: 496,072.78
Step by Step Solution
- Step 1: Write the proportion equation
420,578.08 : 630,712.08 = 330,796.48 : x - Step 2: Convert to fraction form
420,578.08/630,712.08 = 330,796.48/x - Step 3: Cross multiply
420,578.08x = 630,712.08 × 330,796.48 - Step 4: Simplify right side
420,578.08x = 208,637,335,957.48 - Step 5: Solve for x
x = 208,637,335,957.48/420,578.08 - Step 6: Final answer
x = 496,072.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.