Finding the Fourth Proportional to 413,686.91, 570,954.39 and 386,672.00
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Solution
The fourth proportional to 413,686.91, 570,954.39 and 386,672.00 is: 533,669.46
Step by Step Solution
- Step 1: Write the proportion equation
413,686.91 : 570,954.39 = 386,672.00 : x - Step 2: Convert to fraction form
413,686.91/570,954.39 = 386,672.00/x - Step 3: Cross multiply
413,686.91x = 570,954.39 × 386,672.00 - Step 4: Simplify right side
413,686.91x = 220,772,071,585.29 - Step 5: Solve for x
x = 220,772,071,585.29/413,686.91 - Step 6: Final answer
x = 533,669.46
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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.