Finding the Fourth Proportional to 1,188,162, 1,639,767.24 and 651,721.68
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Solution
The fourth proportional to 1,188,162, 1,639,767.24 and 651,721.68 is: 899,432.79
Step by Step Solution
- Step 1: Write the proportion equation
1,188,162 : 1,639,767.24 = 651,721.68 : x - Step 2: Convert to fraction form
1,188,162/1,639,767.24 = 651,721.68/x - Step 3: Cross multiply
1,188,162x = 1,639,767.24 × 651,721.68 - Step 4: Simplify right side
1,188,162x = 1,068,671,860,461.76 - Step 5: Solve for x
x = 1,068,671,860,461.76/1,188,162 - Step 6: Final answer
x = 899,432.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.