Finding the Fourth Proportional to 513,534.40, 708,855.68 and 352,921.12
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Solution
The fourth proportional to 513,534.40, 708,855.68 and 352,921.12 is: 487,153.62
Step by Step Solution
- Step 1: Write the proportion equation
513,534.40 : 708,855.68 = 352,921.12 : x - Step 2: Convert to fraction form
513,534.40/708,855.68 = 352,921.12/x - Step 3: Cross multiply
513,534.40x = 708,855.68 × 352,921.12 - Step 4: Simplify right side
513,534.40x = 250,170,140,503.96 - Step 5: Solve for x
x = 250,170,140,503.96/513,534.40 - Step 6: Final answer
x = 487,153.62
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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.