Finding the Fourth Proportional to 536,438.20, 804,657.30 and 528,143.80
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Solution
The fourth proportional to 536,438.20, 804,657.30 and 528,143.80 is: 792,215.70
Step by Step Solution
- Step 1: Write the proportion equation
536,438.20 : 804,657.30 = 528,143.80 : x - Step 2: Convert to fraction form
536,438.20/804,657.30 = 528,143.80/x - Step 3: Cross multiply
536,438.20x = 804,657.30 × 528,143.80 - Step 4: Simplify right side
536,438.20x = 424,974,764,119.74 - Step 5: Solve for x
x = 424,974,764,119.74/536,438.20 - Step 6: Final answer
x = 792,215.70
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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.