Finding the Fourth Proportional to 513,508.64, 708,403.12 and 332,279.08
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Solution
The fourth proportional to 513,508.64, 708,403.12 and 332,279.08 is: 458,390.61
Step by Step Solution
- Step 1: Write the proportion equation
513,508.64 : 708,403.12 = 332,279.08 : x - Step 2: Convert to fraction form
513,508.64/708,403.12 = 332,279.08/x - Step 3: Cross multiply
513,508.64x = 708,403.12 × 332,279.08 - Step 4: Simplify right side
513,508.64x = 235,387,536,982.73 - Step 5: Solve for x
x = 235,387,536,982.73/513,508.64 - Step 6: Final answer
x = 458,390.61
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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.