Finding the Fourth Proportional to 505,811.10, 697,208.63 and 342,416.08
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Solution
The fourth proportional to 505,811.10, 697,208.63 and 342,416.08 is: 471,985.38
Step by Step Solution
- Step 1: Write the proportion equation
505,811.10 : 697,208.63 = 342,416.08 : x - Step 2: Convert to fraction form
505,811.10/697,208.63 = 342,416.08/x - Step 3: Cross multiply
505,811.10x = 697,208.63 × 342,416.08 - Step 4: Simplify right side
505,811.10x = 238,735,442,571.67 - Step 5: Solve for x
x = 238,735,442,571.67/505,811.10 - Step 6: Final answer
x = 471,985.38
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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.