Finding the Fourth Proportional to 522,118.36, 720,509.34 and 307,271.08
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Solution
The fourth proportional to 522,118.36, 720,509.34 and 307,271.08 is: 424,025.85
Step by Step Solution
- Step 1: Write the proportion equation
522,118.36 : 720,509.34 = 307,271.08 : x - Step 2: Convert to fraction form
522,118.36/720,509.34 = 307,271.08/x - Step 3: Cross multiply
522,118.36x = 720,509.34 × 307,271.08 - Step 4: Simplify right side
522,118.36x = 221,391,683,051.89 - Step 5: Solve for x
x = 221,391,683,051.89/522,118.36 - Step 6: Final answer
x = 424,025.85
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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.