Finding the Fourth Proportional to 639,234.70, 960,277.65 and 534,258.70
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Solution
The fourth proportional to 639,234.70, 960,277.65 and 534,258.70 is: 802,579.54
Step by Step Solution
- Step 1: Write the proportion equation
639,234.70 : 960,277.65 = 534,258.70 : x - Step 2: Convert to fraction form
639,234.70/960,277.65 = 534,258.70/x - Step 3: Cross multiply
639,234.70x = 960,277.65 × 534,258.70 - Step 4: Simplify right side
639,234.70x = 513,036,688,928.06 - Step 5: Solve for x
x = 513,036,688,928.06/639,234.70 - Step 6: Final answer
x = 802,579.54
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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.