Finding the Fourth Proportional to 553,251.73, 763,560.14 and 311,581.55
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Solution
The fourth proportional to 553,251.73, 763,560.14 and 311,581.55 is: 430,023.50
Step by Step Solution
- Step 1: Write the proportion equation
553,251.73 : 763,560.14 = 311,581.55 : x - Step 2: Convert to fraction form
553,251.73/763,560.14 = 311,581.55/x - Step 3: Cross multiply
553,251.73x = 763,560.14 × 311,581.55 - Step 4: Simplify right side
553,251.73x = 237,911,246,563.71 - Step 5: Solve for x
x = 237,911,246,563.71/553,251.73 - Step 6: Final answer
x = 430,023.50
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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.