Finding the Fourth Proportional to 615,430.20, 923,145.30 and 607,135.80
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Solution
The fourth proportional to 615,430.20, 923,145.30 and 607,135.80 is: 910,703.70
Step by Step Solution
- Step 1: Write the proportion equation
615,430.20 : 923,145.30 = 607,135.80 : x - Step 2: Convert to fraction form
615,430.20/923,145.30 = 607,135.80/x - Step 3: Cross multiply
615,430.20x = 923,145.30 × 607,135.80 - Step 4: Simplify right side
615,430.20x = 560,474,560,231.74 - Step 5: Solve for x
x = 560,474,560,231.74/615,430.20 - Step 6: Final answer
x = 910,703.70
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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.