Finding the Fourth Proportional to 869,190.87, 1,199,557.36 and 487,291.46
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Solution
The fourth proportional to 869,190.87, 1,199,557.36 and 487,291.46 is: 672,503.68
Step by Step Solution
- Step 1: Write the proportion equation
869,190.87 : 1,199,557.36 = 487,291.46 : x - Step 2: Convert to fraction form
869,190.87/1,199,557.36 = 487,291.46/x - Step 3: Cross multiply
869,190.87x = 1,199,557.36 × 487,291.46 - Step 4: Simplify right side
869,190.87x = 584,534,059,088.81 - Step 5: Solve for x
x = 584,534,059,088.81/869,190.87 - Step 6: Final answer
x = 672,503.68
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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.