Finding the Fourth Proportional to 513,748.24, 708,971.57 and 287,393.74
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Solution
The fourth proportional to 513,748.24, 708,971.57 and 287,393.74 is: 396,602.80
Step by Step Solution
- Step 1: Write the proportion equation
513,748.24 : 708,971.57 = 287,393.74 : x - Step 2: Convert to fraction form
513,748.24/708,971.57 = 287,393.74/x - Step 3: Cross multiply
513,748.24x = 708,971.57 × 287,393.74 - Step 4: Simplify right side
513,748.24x = 203,753,988,924.30 - Step 5: Solve for x
x = 203,753,988,924.30/513,748.24 - Step 6: Final answer
x = 396,602.80
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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.