Finding the Fourth Proportional to 1,432,457.05, 1,976,828.14 and 787,894.17
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Solution
The fourth proportional to 1,432,457.05, 1,976,828.14 and 787,894.17 is: 1,087,314.53
Step by Step Solution
- Step 1: Write the proportion equation
1,432,457.05 : 1,976,828.14 = 787,894.17 : x - Step 2: Convert to fraction form
1,432,457.05/1,976,828.14 = 787,894.17/x - Step 3: Cross multiply
1,432,457.05x = 1,976,828.14 × 787,894.17 - Step 4: Simplify right side
1,432,457.05x = 1,557,531,366,597.94 - Step 5: Solve for x
x = 1,557,531,366,597.94/1,432,457.05 - Step 6: Final answer
x = 1,087,314.53
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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.