Finding the Fourth Proportional to 1,121,603.37, 1,547,804.76 and 612,305.75
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Solution
The fourth proportional to 1,121,603.37, 1,547,804.76 and 612,305.75 is: 844,977.62
Step by Step Solution
- Step 1: Write the proportion equation
1,121,603.37 : 1,547,804.76 = 612,305.75 : x - Step 2: Convert to fraction form
1,121,603.37/1,547,804.76 = 612,305.75/x - Step 3: Cross multiply
1,121,603.37x = 1,547,804.76 × 612,305.75 - Step 4: Simplify right side
1,121,603.37x = 947,729,746,686.35 - Step 5: Solve for x
x = 947,729,746,686.35/1,121,603.37 - Step 6: Final answer
x = 844,977.62
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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.