Finding the Fourth Proportional to 515,525.10, 711,423.10 and 286,116.94
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Solution
The fourth proportional to 515,525.10, 711,423.10 and 286,116.94 is: 394,840.52
Step by Step Solution
- Step 1: Write the proportion equation
515,525.10 : 711,423.10 = 286,116.94 : x - Step 2: Convert to fraction form
515,525.10/711,423.10 = 286,116.94/x - Step 3: Cross multiply
515,525.10x = 711,423.10 × 286,116.94 - Step 4: Simplify right side
515,525.10x = 203,550,200,417.31 - Step 5: Solve for x
x = 203,550,200,417.31/515,525.10 - Step 6: Final answer
x = 394,840.52
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1.5x scale
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.