Finding the Fourth Proportional to 869,279.99, 1,199,678.19 and 482,220.20
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Solution
The fourth proportional to 869,279.99, 1,199,678.19 and 482,220.20 is: 665,503.71
Step by Step Solution
- Step 1: Write the proportion equation
869,279.99 : 1,199,678.19 = 482,220.20 : x - Step 2: Convert to fraction form
869,279.99/1,199,678.19 = 482,220.20/x - Step 3: Cross multiply
869,279.99x = 1,199,678.19 × 482,220.20 - Step 4: Simplify right side
869,279.99x = 578,509,050,719.05 - Step 5: Solve for x
x = 578,509,050,719.05/869,279.99 - Step 6: Final answer
x = 665,503.71
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1.5x scale
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.