Finding the Fourth Proportional to 2,130,463.13, 2,940,134.51 and 1,163,601.23
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Solution
The fourth proportional to 2,130,463.13, 2,940,134.51 and 1,163,601.23 is: 1,605,821.80
Step by Step Solution
- Step 1: Write the proportion equation
2,130,463.13 : 2,940,134.51 = 1,163,601.23 : x - Step 2: Convert to fraction form
2,130,463.13/2,940,134.51 = 1,163,601.23/x - Step 3: Cross multiply
2,130,463.13x = 2,940,134.51 × 1,163,601.23 - Step 4: Simplify right side
2,130,463.13x = 3,421,144,132,201.45 - Step 5: Solve for x
x = 3,421,144,132,201.45/2,130,463.13 - Step 6: Final answer
x = 1,605,821.80
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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.