Finding the Fourth Proportional to 696,014.28, 960,567.12 and 390,142.62
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Solution
The fourth proportional to 696,014.28, 960,567.12 and 390,142.62 is: 538,434.60
Step by Step Solution
- Step 1: Write the proportion equation
696,014.28 : 960,567.12 = 390,142.62 : x - Step 2: Convert to fraction form
696,014.28/960,567.12 = 390,142.62/x - Step 3: Cross multiply
696,014.28x = 960,567.12 × 390,142.62 - Step 4: Simplify right side
696,014.28x = 374,758,172,882.65 - Step 5: Solve for x
x = 374,758,172,882.65/696,014.28 - Step 6: Final answer
x = 538,434.60
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1.5x scale
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.