Finding the Fourth Proportional to 475,879.68, 712,867.80 and 286,235.34
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Solution
The fourth proportional to 475,879.68, 712,867.80 and 286,235.34 is: 428,780.56
Step by Step Solution
- Step 1: Write the proportion equation
475,879.68 : 712,867.80 = 286,235.34 : x - Step 2: Convert to fraction form
475,879.68/712,867.80 = 286,235.34/x - Step 3: Cross multiply
475,879.68x = 712,867.80 × 286,235.34 - Step 4: Simplify right side
475,879.68x = 204,047,957,108.05 - Step 5: Solve for x
x = 204,047,957,108.05/475,879.68 - Step 6: Final answer
x = 428,780.56
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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.