Finding the Fourth Proportional to 612,423.18, 845,144.28 and 354,335.31
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Solution
The fourth proportional to 612,423.18, 845,144.28 and 354,335.31 is: 488,982.90
Step by Step Solution
- Step 1: Write the proportion equation
612,423.18 : 845,144.28 = 354,335.31 : x - Step 2: Convert to fraction form
612,423.18/845,144.28 = 354,335.31/x - Step 3: Cross multiply
612,423.18x = 845,144.28 × 354,335.31 - Step 4: Simplify right side
612,423.18x = 299,464,460,448.53 - Step 5: Solve for x
x = 299,464,460,448.53/612,423.18 - Step 6: Final answer
x = 488,982.90
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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.