Finding the Fourth Proportional to 553,066.62, 763,246.70 and 311,358.33
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Solution
The fourth proportional to 553,066.62, 763,246.70 and 311,358.33 is: 429,682.80
Step by Step Solution
- Step 1: Write the proportion equation
553,066.62 : 763,246.70 = 311,358.33 : x - Step 2: Convert to fraction form
553,066.62/763,246.70 = 311,358.33/x - Step 3: Cross multiply
553,066.62x = 763,246.70 × 311,358.33 - Step 4: Simplify right side
553,066.62x = 237,643,216,333.22 - Step 5: Solve for x
x = 237,643,216,333.22/553,066.62 - Step 6: Final answer
x = 429,682.80
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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.