Finding the Fourth Proportional to 715,413.18, 987,323.67 and 443,533.98
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Solution
The fourth proportional to 715,413.18, 987,323.67 and 443,533.98 is: 612,110.05
Step by Step Solution
- Step 1: Write the proportion equation
715,413.18 : 987,323.67 = 443,533.98 : x - Step 2: Convert to fraction form
715,413.18/987,323.67 = 443,533.98/x - Step 3: Cross multiply
715,413.18x = 987,323.67 × 443,533.98 - Step 4: Simplify right side
715,413.18x = 437,911,596,903.31 - Step 5: Solve for x
x = 437,911,596,903.31/715,413.18 - Step 6: Final answer
x = 612,110.05
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1.5x scale
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.