Finding the Fourth Proportional to 859,292.40, 1,185,817.68 and 477,328.80
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Solution
The fourth proportional to 859,292.40, 1,185,817.68 and 477,328.80 is: 658,710.50
Step by Step Solution
- Step 1: Write the proportion equation
859,292.40 : 1,185,817.68 = 477,328.80 : x - Step 2: Convert to fraction form
859,292.40/1,185,817.68 = 477,328.80/x - Step 3: Cross multiply
859,292.40x = 1,185,817.68 × 477,328.80 - Step 4: Simplify right side
859,292.40x = 566,024,930,213.18 - Step 5: Solve for x
x = 566,024,930,213.18/859,292.40 - Step 6: Final answer
x = 658,710.50
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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.