Finding the Fourth Proportional to 979,981.58, 1,349,246.28 and 836,164.46
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Solution
The fourth proportional to 979,981.58, 1,349,246.28 and 836,164.46 is: 1,151,237.75
Step by Step Solution
- Step 1: Write the proportion equation
979,981.58 : 1,349,246.28 = 836,164.46 : x - Step 2: Convert to fraction form
979,981.58/1,349,246.28 = 836,164.46/x - Step 3: Cross multiply
979,981.58x = 1,349,246.28 × 836,164.46 - Step 4: Simplify right side
979,981.58x = 1,128,191,780,376.98 - Step 5: Solve for x
x = 1,128,191,780,376.98/979,981.58 - Step 6: Final answer
x = 1,151,237.75
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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.