Finding the Fourth Proportional to 663,117.75, 915,102.63 and 361,311.75
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Solution
The fourth proportional to 663,117.75, 915,102.63 and 361,311.75 is: 498,610.29
Step by Step Solution
- Step 1: Write the proportion equation
663,117.75 : 915,102.63 = 361,311.75 : x - Step 2: Convert to fraction form
663,117.75/915,102.63 = 361,311.75/x - Step 3: Cross multiply
663,117.75x = 915,102.63 × 361,311.75 - Step 4: Simplify right side
663,117.75x = 330,637,332,674.90 - Step 5: Solve for x
x = 330,637,332,674.90/663,117.75 - Step 6: Final answer
x = 498,610.29
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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.