Finding the Fourth Proportional to 2,146,360.97, 2,961,332.16 and 1,286,607.53
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Solution
The fourth proportional to 2,146,360.97, 2,961,332.16 and 1,286,607.53 is: 1,775,131.17
Step by Step Solution
- Step 1: Write the proportion equation
2,146,360.97 : 2,961,332.16 = 1,286,607.53 : x - Step 2: Convert to fraction form
2,146,360.97/2,961,332.16 = 1,286,607.53/x - Step 3: Cross multiply
2,146,360.97x = 2,961,332.16 × 1,286,607.53 - Step 4: Simplify right side
2,146,360.97x = 3,810,072,255,887.17 - Step 5: Solve for x
x = 3,810,072,255,887.17/2,146,360.97 - Step 6: Final answer
x = 1,775,131.17
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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.