Finding the Fourth Proportional to 1,432,457.68, 1,976,829 and 787,894.79
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Solution
The fourth proportional to 1,432,457.68, 1,976,829 and 787,894.79 is: 1,087,315.38
Step by Step Solution
- Step 1: Write the proportion equation
1,432,457.68 : 1,976,829 = 787,894.79 : x - Step 2: Convert to fraction form
1,432,457.68/1,976,829 = 787,894.79/x - Step 3: Cross multiply
1,432,457.68x = 1,976,829 × 787,894.79 - Step 4: Simplify right side
1,432,457.68x = 1,557,533,269,820.91 - Step 5: Solve for x
x = 1,557,533,269,820.91/1,432,457.68 - Step 6: Final answer
x = 1,087,315.38
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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.