Finding the Fourth Proportional to 470,048.24, 648,768.84 and 288,855.20
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Solution
The fourth proportional to 470,048.24, 648,768.84 and 288,855.20 is: 398,683.02
Step by Step Solution
- Step 1: Write the proportion equation
470,048.24 : 648,768.84 = 288,855.20 : x - Step 2: Convert to fraction form
470,048.24/648,768.84 = 288,855.20/x - Step 3: Cross multiply
470,048.24x = 648,768.84 × 288,855.20 - Step 4: Simplify right side
470,048.24x = 187,400,253,031.97 - Step 5: Solve for x
x = 187,400,253,031.97/470,048.24 - Step 6: Final answer
x = 398,683.02
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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.