Finding the Fourth Proportional to 815,691.34, 1,125,622.74 and 453,138.02
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Solution
The fourth proportional to 815,691.34, 1,125,622.74 and 453,138.02 is: 625,313.08
Step by Step Solution
- Step 1: Write the proportion equation
815,691.34 : 1,125,622.74 = 453,138.02 : x - Step 2: Convert to fraction form
815,691.34/1,125,622.74 = 453,138.02/x - Step 3: Cross multiply
815,691.34x = 1,125,622.74 × 453,138.02 - Step 4: Simplify right side
815,691.34x = 510,062,462,484.63 - Step 5: Solve for x
x = 510,062,462,484.63/815,691.34 - Step 6: Final answer
x = 625,313.08
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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.