Finding the Fourth Proportional to 522,271.26, 720,680.08 and 307,398.52
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Solution
The fourth proportional to 522,271.26, 720,680.08 and 307,398.52 is: 424,178.02
Step by Step Solution
- Step 1: Write the proportion equation
522,271.26 : 720,680.08 = 307,398.52 : x - Step 2: Convert to fraction form
522,271.26/720,680.08 = 307,398.52/x - Step 3: Cross multiply
522,271.26x = 720,680.08 × 307,398.52 - Step 4: Simplify right side
522,271.26x = 221,535,989,985.48 - Step 5: Solve for x
x = 221,535,989,985.48/522,271.26 - Step 6: Final answer
x = 424,178.02
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1.5x scale
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.