Finding the Fourth Proportional to 516,980.30, 713,420.33 and 287,536.91
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Solution
The fourth proportional to 516,980.30, 713,420.33 and 287,536.91 is: 396,793.99
Step by Step Solution
- Step 1: Write the proportion equation
516,980.30 : 713,420.33 = 287,536.91 : x - Step 2: Convert to fraction form
516,980.30/713,420.33 = 287,536.91/x - Step 3: Cross multiply
516,980.30x = 713,420.33 × 287,536.91 - Step 4: Simplify right side
516,980.30x = 205,134,672,214.59 - Step 5: Solve for x
x = 205,134,672,214.59/516,980.30 - Step 6: Final answer
x = 396,793.99
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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.