Finding the Fourth Proportional to 669,889.12, 924,393.36 and 383,343.52
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Solution
The fourth proportional to 669,889.12, 924,393.36 and 383,343.52 is: 528,983.37
Step by Step Solution
- Step 1: Write the proportion equation
669,889.12 : 924,393.36 = 383,343.52 : x - Step 2: Convert to fraction form
669,889.12/924,393.36 = 383,343.52/x - Step 3: Cross multiply
669,889.12x = 924,393.36 × 383,343.52 - Step 4: Simplify right side
669,889.12x = 354,360,204,487.03 - Step 5: Solve for x
x = 354,360,204,487.03/669,889.12 - Step 6: Final answer
x = 528,983.37
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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.