Finding the Fourth Proportional to 429,062.97, 643,698.51 and 129,525.67
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Solution
The fourth proportional to 429,062.97, 643,698.51 and 129,525.67 is: 194,319.92
Step by Step Solution
- Step 1: Write the proportion equation
429,062.97 : 643,698.51 = 129,525.67 : x - Step 2: Convert to fraction form
429,062.97/643,698.51 = 129,525.67/x - Step 3: Cross multiply
429,062.97x = 643,698.51 × 129,525.67 - Step 4: Simplify right side
429,062.97x = 83,375,480,785.75 - Step 5: Solve for x
x = 83,375,480,785.75/429,062.97 - Step 6: Final answer
x = 194,319.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.