Finding the Fourth Proportional to 518,541.35, 715,209.14 and 396,309.92
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Solution
The fourth proportional to 518,541.35, 715,209.14 and 396,309.92 is: 546,618.85
Step by Step Solution
- Step 1: Write the proportion equation
518,541.35 : 715,209.14 = 396,309.92 : x - Step 2: Convert to fraction form
518,541.35/715,209.14 = 396,309.92/x - Step 3: Cross multiply
518,541.35x = 715,209.14 × 396,309.92 - Step 4: Simplify right side
518,541.35x = 283,444,474,471.40 - Step 5: Solve for x
x = 283,444,474,471.40/518,541.35 - Step 6: Final answer
x = 546,618.85
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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.