Finding the Fourth Proportional to 1,178,130.80, 1,625,828.28 and 668,841.68
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Solution
The fourth proportional to 1,178,130.80, 1,625,828.28 and 668,841.68 is: 923,005.93
Step by Step Solution
- Step 1: Write the proportion equation
1,178,130.80 : 1,625,828.28 = 668,841.68 : x - Step 2: Convert to fraction form
1,178,130.80/1,625,828.28 = 668,841.68/x - Step 3: Cross multiply
1,178,130.80x = 1,625,828.28 × 668,841.68 - Step 4: Simplify right side
1,178,130.80x = 1,087,421,718,186.71 - Step 5: Solve for x
x = 1,087,421,718,186.71/1,178,130.80 - Step 6: Final answer
x = 923,005.93
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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.