Finding the Fourth Proportional to 1,539,669.16, 2,124,699.36 and 851,329.12
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Solution
The fourth proportional to 1,539,669.16, 2,124,699.36 and 851,329.12 is: 1,174,809.81
Step by Step Solution
- Step 1: Write the proportion equation
1,539,669.16 : 2,124,699.36 = 851,329.12 : x - Step 2: Convert to fraction form
1,539,669.16/2,124,699.36 = 851,329.12/x - Step 3: Cross multiply
1,539,669.16x = 2,124,699.36 × 851,329.12 - Step 4: Simplify right side
1,539,669.16x = 1,808,818,436,413.36 - Step 5: Solve for x
x = 1,808,818,436,413.36/1,539,669.16 - Step 6: Final answer
x = 1,174,809.81
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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.