Finding the Fourth Proportional to 669,851.28, 924,132.96 and 383,217.84
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Solution
The fourth proportional to 669,851.28, 924,132.96 and 383,217.84 is: 528,690.84
Step by Step Solution
- Step 1: Write the proportion equation
669,851.28 : 924,132.96 = 383,217.84 : x - Step 2: Convert to fraction form
669,851.28/924,132.96 = 383,217.84/x - Step 3: Cross multiply
669,851.28x = 924,132.96 × 383,217.84 - Step 4: Simplify right side
669,851.28x = 354,144,236,804.01 - Step 5: Solve for x
x = 354,144,236,804.01/669,851.28 - Step 6: Final answer
x = 528,690.84
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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.