Finding the Fourth Proportional to 1,024.05, 1,413.30 and 631.07
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Solution
The fourth proportional to 1,024.05, 1,413.30 and 631.07 is: 870.95
Step by Step Solution
- Step 1: Write the proportion equation
1,024.05 : 1,413.30 = 631.07 : x - Step 2: Convert to fraction form
1,024.05/1,413.30 = 631.07/x - Step 3: Cross multiply
1,024.05x = 1,413.30 × 631.07 - Step 4: Simplify right side
1,024.05x = 891,891.23 - Step 5: Solve for x
x = 891,891.23/1,024.05 - Step 6: Final answer
x = 870.95
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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.