Finding the Fourth Proportional to 747,176.20, 1,031,101.98 and 407,644.48
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Solution
The fourth proportional to 747,176.20, 1,031,101.98 and 407,644.48 is: 562,548.74
Step by Step Solution
- Step 1: Write the proportion equation
747,176.20 : 1,031,101.98 = 407,644.48 : x - Step 2: Convert to fraction form
747,176.20/1,031,101.98 = 407,644.48/x - Step 3: Cross multiply
747,176.20x = 1,031,101.98 × 407,644.48 - Step 4: Simplify right side
747,176.20x = 420,323,030,464.07 - Step 5: Solve for x
x = 420,323,030,464.07/747,176.20 - Step 6: Final answer
x = 562,548.74
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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.