Finding the Fourth Proportional to 553,419.99, 763,888.95 and 324,031.05
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Solution
The fourth proportional to 553,419.99, 763,888.95 and 324,031.05 is: 447,262.01
Step by Step Solution
- Step 1: Write the proportion equation
553,419.99 : 763,888.95 = 324,031.05 : x - Step 2: Convert to fraction form
553,419.99/763,888.95 = 324,031.05/x - Step 3: Cross multiply
553,419.99x = 763,888.95 × 324,031.05 - Step 4: Simplify right side
553,419.99x = 247,523,738,551.90 - Step 5: Solve for x
x = 247,523,738,551.90/553,419.99 - Step 6: Final answer
x = 447,262.01
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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.