Finding the Fourth Proportional to 851,129.12, 1,276,985.32 and 290,557.28
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Solution
The fourth proportional to 851,129.12, 1,276,985.32 and 290,557.28 is: 435,935.48
Step by Step Solution
- Step 1: Write the proportion equation
851,129.12 : 1,276,985.32 = 290,557.28 : x - Step 2: Convert to fraction form
851,129.12/1,276,985.32 = 290,557.28/x - Step 3: Cross multiply
851,129.12x = 1,276,985.32 × 290,557.28 - Step 4: Simplify right side
851,129.12x = 371,037,381,179.13 - Step 5: Solve for x
x = 371,037,381,179.13/851,129.12 - Step 6: Final answer
x = 435,935.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.