Finding the Fourth Proportional to 519,778.60, 717,286.68 and 290,339.08
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Solution
The fourth proportional to 519,778.60, 717,286.68 and 290,339.08 is: 400,663.58
Step by Step Solution
- Step 1: Write the proportion equation
519,778.60 : 717,286.68 = 290,339.08 : x - Step 2: Convert to fraction form
519,778.60/717,286.68 = 290,339.08/x - Step 3: Cross multiply
519,778.60x = 717,286.68 × 290,339.08 - Step 4: Simplify right side
519,778.60x = 208,256,354,767.45 - Step 5: Solve for x
x = 208,256,354,767.45/519,778.60 - Step 6: Final answer
x = 400,663.58
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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.