Finding the Fourth Proportional to 761,430.24, 1,050,775.34 and 421,898.49
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Solution
The fourth proportional to 761,430.24, 1,050,775.34 and 421,898.49 is: 582,220.80
Step by Step Solution
- Step 1: Write the proportion equation
761,430.24 : 1,050,775.34 = 421,898.49 : x - Step 2: Convert to fraction form
761,430.24/1,050,775.34 = 421,898.49/x - Step 3: Cross multiply
761,430.24x = 1,050,775.34 × 421,898.49 - Step 4: Simplify right side
761,430.24x = 443,320,527,165.74 - Step 5: Solve for x
x = 443,320,527,165.74/761,430.24 - Step 6: Final answer
x = 582,220.80
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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.