Finding the Fourth Proportional to 513,508.70, 708,403.21 and 332,279.13
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Solution
The fourth proportional to 513,508.70, 708,403.21 and 332,279.13 is: 458,390.68
Step by Step Solution
- Step 1: Write the proportion equation
513,508.70 : 708,403.21 = 332,279.13 : x - Step 2: Convert to fraction form
513,508.70/708,403.21 = 332,279.13/x - Step 3: Cross multiply
513,508.70x = 708,403.21 × 332,279.13 - Step 4: Simplify right side
513,508.70x = 235,387,602,308.01 - Step 5: Solve for x
x = 235,387,602,308.01/513,508.70 - Step 6: Final answer
x = 458,390.68
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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.