Finding the Fourth Proportional to 1,535,367.13, 2,118,121.98 and 890,413.54
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Solution
The fourth proportional to 1,535,367.13, 2,118,121.98 and 890,413.54 is: 1,228,373.63
Step by Step Solution
- Step 1: Write the proportion equation
1,535,367.13 : 2,118,121.98 = 890,413.54 : x - Step 2: Convert to fraction form
1,535,367.13/2,118,121.98 = 890,413.54/x - Step 3: Cross multiply
1,535,367.13x = 2,118,121.98 × 890,413.54 - Step 4: Simplify right side
1,535,367.13x = 1,886,004,490,363.61 - Step 5: Solve for x
x = 1,886,004,490,363.61/1,535,367.13 - Step 6: Final answer
x = 1,228,373.63
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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.