Finding the Fourth Proportional to 989,618.08, 1,364,771.28 and 836,976.28
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Solution
The fourth proportional to 989,618.08, 1,364,771.28 and 836,976.28 is: 1,154,264.67
Step by Step Solution
- Step 1: Write the proportion equation
989,618.08 : 1,364,771.28 = 836,976.28 : x - Step 2: Convert to fraction form
989,618.08/1,364,771.28 = 836,976.28/x - Step 3: Cross multiply
989,618.08x = 1,364,771.28 × 836,976.28 - Step 4: Simplify right side
989,618.08x = 1,142,281,188,985.24 - Step 5: Solve for x
x = 1,142,281,188,985.24/989,618.08 - Step 6: Final answer
x = 1,154,264.67
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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.