Finding the Fourth Proportional to 781,887.98, 1,078,914.38 and 437,742.74
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Solution
The fourth proportional to 781,887.98, 1,078,914.38 and 437,742.74 is: 604,034.02
Step by Step Solution
- Step 1: Write the proportion equation
781,887.98 : 1,078,914.38 = 437,742.74 : x - Step 2: Convert to fraction form
781,887.98/1,078,914.38 = 437,742.74/x - Step 3: Cross multiply
781,887.98x = 1,078,914.38 × 437,742.74 - Step 4: Simplify right side
781,887.98x = 472,286,936,926.60 - Step 5: Solve for x
x = 472,286,936,926.60/781,887.98 - Step 6: Final answer
x = 604,034.02
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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.