Finding the Fourth Proportional to 698,346.42, 1,047,978.99 and 383,024.50
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Solution
The fourth proportional to 698,346.42, 1,047,978.99 and 383,024.50 is: 574,788.70
Step by Step Solution
- Step 1: Write the proportion equation
698,346.42 : 1,047,978.99 = 383,024.50 : x - Step 2: Convert to fraction form
698,346.42/1,047,978.99 = 383,024.50/x - Step 3: Cross multiply
698,346.42x = 1,047,978.99 × 383,024.50 - Step 4: Simplify right side
698,346.42x = 401,401,628,655.26 - Step 5: Solve for x
x = 401,401,628,655.26/698,346.42 - Step 6: Final answer
x = 574,788.70
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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.