Finding the Fourth Proportional to 455,349.65, 628,379.58 and 251,413.28
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Solution
The fourth proportional to 455,349.65, 628,379.58 and 251,413.28 is: 346,948.70
Step by Step Solution
- Step 1: Write the proportion equation
455,349.65 : 628,379.58 = 251,413.28 : x - Step 2: Convert to fraction form
455,349.65/628,379.58 = 251,413.28/x - Step 3: Cross multiply
455,349.65x = 628,379.58 × 251,413.28 - Step 4: Simplify right side
455,349.65x = 157,982,971,292.82 - Step 5: Solve for x
x = 157,982,971,292.82/455,349.65 - Step 6: Final answer
x = 346,948.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.