Finding the Fourth Proportional to 620,402.05, 930,667.80 and 171,122.99
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Solution
The fourth proportional to 620,402.05, 930,667.80 and 171,122.99 is: 256,702.34
Step by Step Solution
- Step 1: Write the proportion equation
620,402.05 : 930,667.80 = 171,122.99 : x - Step 2: Convert to fraction form
620,402.05/930,667.80 = 171,122.99/x - Step 3: Cross multiply
620,402.05x = 930,667.80 × 171,122.99 - Step 4: Simplify right side
620,402.05x = 159,258,656,632.72 - Step 5: Solve for x
x = 159,258,656,632.72/620,402.05 - Step 6: Final answer
x = 256,702.34
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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.