Finding the Fourth Proportional to 838,071.08, 1,156,515.88 and 456,089.68
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Solution
The fourth proportional to 838,071.08, 1,156,515.88 and 456,089.68 is: 629,391.67
Step by Step Solution
- Step 1: Write the proportion equation
838,071.08 : 1,156,515.88 = 456,089.68 : x - Step 2: Convert to fraction form
838,071.08/1,156,515.88 = 456,089.68/x - Step 3: Cross multiply
838,071.08x = 1,156,515.88 × 456,089.68 - Step 4: Simplify right side
838,071.08x = 527,474,957,624.12 - Step 5: Solve for x
x = 527,474,957,624.12/838,071.08 - Step 6: Final answer
x = 629,391.67
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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.