Finding the Fourth Proportional to 639,184.87, 959,143.63 and 260,035.62
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Solution
The fourth proportional to 639,184.87, 959,143.63 and 260,035.62 is: 390,202.46
Step by Step Solution
- Step 1: Write the proportion equation
639,184.87 : 959,143.63 = 260,035.62 : x - Step 2: Convert to fraction form
639,184.87/959,143.63 = 260,035.62/x - Step 3: Cross multiply
639,184.87x = 959,143.63 × 260,035.62 - Step 4: Simplify right side
639,184.87x = 249,411,508,496.10 - Step 5: Solve for x
x = 249,411,508,496.10/639,184.87 - Step 6: Final answer
x = 390,202.46
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1.5x scale
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.