Finding the Fourth Proportional to 513,221.44, 708,246.48 and 286,866.76
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Solution
The fourth proportional to 513,221.44, 708,246.48 and 286,866.76 is: 395,876.63
Step by Step Solution
- Step 1: Write the proportion equation
513,221.44 : 708,246.48 = 286,866.76 : x - Step 2: Convert to fraction form
513,221.44/708,246.48 = 286,866.76/x - Step 3: Cross multiply
513,221.44x = 708,246.48 × 286,866.76 - Step 4: Simplify right side
513,221.44x = 203,172,372,999.01 - Step 5: Solve for x
x = 203,172,372,999.01/513,221.44 - Step 6: Final answer
x = 395,876.63
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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.