Finding the Fourth Proportional to 544,580.70, 815,121.45 and 387,116.70
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Solution
The fourth proportional to 544,580.70, 815,121.45 and 387,116.70 is: 579,431.34
Step by Step Solution
- Step 1: Write the proportion equation
544,580.70 : 815,121.45 = 387,116.70 : x - Step 2: Convert to fraction form
544,580.70/815,121.45 = 387,116.70/x - Step 3: Cross multiply
544,580.70x = 815,121.45 × 387,116.70 - Step 4: Simplify right side
544,580.70x = 315,547,125,823.22 - Step 5: Solve for x
x = 315,547,125,823.22/544,580.70 - Step 6: Final answer
x = 579,431.34
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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.