Finding the Fourth Proportional to 935,658.60, 1,291,207.98 and 505,937.70
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Solution
The fourth proportional to 935,658.60, 1,291,207.98 and 505,937.70 is: 698,193.55
Step by Step Solution
- Step 1: Write the proportion equation
935,658.60 : 1,291,207.98 = 505,937.70 : x - Step 2: Convert to fraction form
935,658.60/1,291,207.98 = 505,937.70/x - Step 3: Cross multiply
935,658.60x = 1,291,207.98 × 505,937.70 - Step 4: Simplify right side
935,658.60x = 653,270,795,622.85 - Step 5: Solve for x
x = 653,270,795,622.85/935,658.60 - Step 6: Final answer
x = 698,193.55
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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.