Finding the Fourth Proportional to 992,892.99, 1,370,134.38 and 557,269.86
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Solution
The fourth proportional to 992,892.99, 1,370,134.38 and 557,269.86 is: 768,999.88
Step by Step Solution
- Step 1: Write the proportion equation
992,892.99 : 1,370,134.38 = 557,269.86 : x - Step 2: Convert to fraction form
992,892.99/1,370,134.38 = 557,269.86/x - Step 3: Cross multiply
992,892.99x = 1,370,134.38 × 557,269.86 - Step 4: Simplify right side
992,892.99x = 763,534,594,123.79 - Step 5: Solve for x
x = 763,534,594,123.79/992,892.99 - Step 6: Final answer
x = 768,999.88
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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.