Finding the Fourth Proportional to 723,146.08, 997,604.08 and 455,021.92
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Solution
The fourth proportional to 723,146.08, 997,604.08 and 455,021.92 is: 627,717.88
Step by Step Solution
- Step 1: Write the proportion equation
723,146.08 : 997,604.08 = 455,021.92 : x - Step 2: Convert to fraction form
723,146.08/997,604.08 = 455,021.92/x - Step 3: Cross multiply
723,146.08x = 997,604.08 × 455,021.92 - Step 4: Simplify right side
723,146.08x = 453,931,723,881.43 - Step 5: Solve for x
x = 453,931,723,881.43/723,146.08 - Step 6: Final answer
x = 627,717.88
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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.