Finding the Fourth Proportional to 1,620,295.20, 2,430,442.80 and 555,347.70
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Solution
The fourth proportional to 1,620,295.20, 2,430,442.80 and 555,347.70 is: 833,021.55
Step by Step Solution
- Step 1: Write the proportion equation
1,620,295.20 : 2,430,442.80 = 555,347.70 : x - Step 2: Convert to fraction form
1,620,295.20/2,430,442.80 = 555,347.70/x - Step 3: Cross multiply
1,620,295.20x = 2,430,442.80 × 555,347.70 - Step 4: Simplify right side
1,620,295.20x = 1,349,740,818,961.56 - Step 5: Solve for x
x = 1,349,740,818,961.56/1,620,295.20 - Step 6: Final answer
x = 833,021.55
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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.