Finding the Fourth Proportional to 520,083.70, 780,125.55 and 283,887.70
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Solution
The fourth proportional to 520,083.70, 780,125.55 and 283,887.70 is: 425,831.55
Step by Step Solution
- Step 1: Write the proportion equation
520,083.70 : 780,125.55 = 283,887.70 : x - Step 2: Convert to fraction form
520,083.70/780,125.55 = 283,887.70/x - Step 3: Cross multiply
520,083.70x = 780,125.55 × 283,887.70 - Step 4: Simplify right side
520,083.70x = 221,468,048,100.74 - Step 5: Solve for x
x = 221,468,048,100.74/520,083.70 - Step 6: Final answer
x = 425,831.55
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1.5x scale
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.