Finding the Fourth Proportional to 553,909.84, 764,396.12 and 299,261.23
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Solution
The fourth proportional to 553,909.84, 764,396.12 and 299,261.23 is: 412,980.79
Step by Step Solution
- Step 1: Write the proportion equation
553,909.84 : 764,396.12 = 299,261.23 : x - Step 2: Convert to fraction form
553,909.84/764,396.12 = 299,261.23/x - Step 3: Cross multiply
553,909.84x = 764,396.12 × 299,261.23 - Step 4: Simplify right side
553,909.84x = 228,754,123,078.43 - Step 5: Solve for x
x = 228,754,123,078.43/553,909.84 - Step 6: Final answer
x = 412,980.79
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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.