Finding the Fourth Proportional to 739,413.73, 1,020,438.21 and 417,006.19
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Solution
The fourth proportional to 739,413.73, 1,020,438.21 and 417,006.19 is: 575,495.20
Step by Step Solution
- Step 1: Write the proportion equation
739,413.73 : 1,020,438.21 = 417,006.19 : x - Step 2: Convert to fraction form
739,413.73/1,020,438.21 = 417,006.19/x - Step 3: Cross multiply
739,413.73x = 1,020,438.21 × 417,006.19 - Step 4: Simplify right side
739,413.73x = 425,529,050,082.52 - Step 5: Solve for x
x = 425,529,050,082.52/739,413.73 - Step 6: Final answer
x = 575,495.20
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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.