Finding the Fourth Proportional to 1,620,259.20, 2,430,388.80 and 555,311.70
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Solution
The fourth proportional to 1,620,259.20, 2,430,388.80 and 555,311.70 is: 832,967.55
Step by Step Solution
- Step 1: Write the proportion equation
1,620,259.20 : 2,430,388.80 = 555,311.70 : x - Step 2: Convert to fraction form
1,620,259.20/2,430,388.80 = 555,311.70/x - Step 3: Cross multiply
1,620,259.20x = 2,430,388.80 × 555,311.70 - Step 4: Simplify right side
1,620,259.20x = 1,349,623,336,188.96 - Step 5: Solve for x
x = 1,349,623,336,188.96/1,620,259.20 - Step 6: Final answer
x = 832,967.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.