Finding the Fourth Proportional to 499,402.99, 689,124.69 and 368,650.20
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Solution
The fourth proportional to 499,402.99, 689,124.69 and 368,650.20 is: 508,699.31
Step by Step Solution
- Step 1: Write the proportion equation
499,402.99 : 689,124.69 = 368,650.20 : x - Step 2: Convert to fraction form
499,402.99/689,124.69 = 368,650.20/x - Step 3: Cross multiply
499,402.99x = 689,124.69 × 368,650.20 - Step 4: Simplify right side
499,402.99x = 254,045,956,137.16 - Step 5: Solve for x
x = 254,045,956,137.16/499,402.99 - Step 6: Final answer
x = 508,699.31
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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.