Finding the Fourth Proportional to 420,714.41, 630,696.48 and 154,413.14
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Solution
The fourth proportional to 420,714.41, 630,696.48 and 154,413.14 is: 231,482.02
Step by Step Solution
- Step 1: Write the proportion equation
420,714.41 : 630,696.48 = 154,413.14 : x - Step 2: Convert to fraction form
420,714.41/630,696.48 = 154,413.14/x - Step 3: Cross multiply
420,714.41x = 630,696.48 × 154,413.14 - Step 4: Simplify right side
420,714.41x = 97,387,820,131.22 - Step 5: Solve for x
x = 97,387,820,131.22/420,714.41 - Step 6: Final answer
x = 231,482.02
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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.