Finding the Fourth Proportional to 1,621,332.16, 2,430,686.40 and 675,413.44
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Solution
The fourth proportional to 1,621,332.16, 2,430,686.40 and 675,413.44 is: 1,012,573.67
Step by Step Solution
- Step 1: Write the proportion equation
1,621,332.16 : 2,430,686.40 = 675,413.44 : x - Step 2: Convert to fraction form
1,621,332.16/2,430,686.40 = 675,413.44/x - Step 3: Cross multiply
1,621,332.16x = 2,430,686.40 × 675,413.44 - Step 4: Simplify right side
1,621,332.16x = 1,641,718,262,985.22 - Step 5: Solve for x
x = 1,641,718,262,985.22/1,621,332.16 - Step 6: Final answer
x = 1,012,573.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.