Finding the Fourth Proportional to 499,425.21, 747,220.95 and 286,295.31
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Solution
The fourth proportional to 499,425.21, 747,220.95 and 286,295.31 is: 428,344.12
Step by Step Solution
- Step 1: Write the proportion equation
499,425.21 : 747,220.95 = 286,295.31 : x - Step 2: Convert to fraction form
499,425.21/747,220.95 = 286,295.31/x - Step 3: Cross multiply
499,425.21x = 747,220.95 × 286,295.31 - Step 4: Simplify right side
499,425.21x = 213,925,853,518.74 - Step 5: Solve for x
x = 213,925,853,518.74/499,425.21 - Step 6: Final answer
x = 428,344.12
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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.