Finding the Fourth Proportional to 1,690,305.60, 2,331,585.24 and 1,380,658.08
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Solution
The fourth proportional to 1,690,305.60, 2,331,585.24 and 1,380,658.08 is: 1,904,461.54
Step by Step Solution
- Step 1: Write the proportion equation
1,690,305.60 : 2,331,585.24 = 1,380,658.08 : x - Step 2: Convert to fraction form
1,690,305.60/2,331,585.24 = 1,380,658.08/x - Step 3: Cross multiply
1,690,305.60x = 2,331,585.24 × 1,380,658.08 - Step 4: Simplify right side
1,690,305.60x = 3,219,122,000,814.74 - Step 5: Solve for x
x = 3,219,122,000,814.74/1,690,305.60 - Step 6: Final answer
x = 1,904,461.54
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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.