Finding the Fourth Proportional to 838,311.38, 1,156,869.84 and 456,341.02
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Solution
The fourth proportional to 838,311.38, 1,156,869.84 and 456,341.02 is: 629,750.68
Step by Step Solution
- Step 1: Write the proportion equation
838,311.38 : 1,156,869.84 = 456,341.02 : x - Step 2: Convert to fraction form
838,311.38/1,156,869.84 = 456,341.02/x - Step 3: Cross multiply
838,311.38x = 1,156,869.84 × 456,341.02 - Step 4: Simplify right side
838,311.38x = 527,927,162,792.84 - Step 5: Solve for x
x = 527,927,162,792.84/838,311.38 - Step 6: Final answer
x = 629,750.68
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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.