Finding the Fourth Proportional to 513,691.74, 708,856.11 and 287,293.50
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Solution
The fourth proportional to 513,691.74, 708,856.11 and 287,293.50 is: 396,443.50
Step by Step Solution
- Step 1: Write the proportion equation
513,691.74 : 708,856.11 = 287,293.50 : x - Step 2: Convert to fraction form
513,691.74/708,856.11 = 287,293.50/x - Step 3: Cross multiply
513,691.74x = 708,856.11 × 287,293.50 - Step 4: Simplify right side
513,691.74x = 203,649,752,838.29 - Step 5: Solve for x
x = 203,649,752,838.29/513,691.74 - Step 6: Final answer
x = 396,443.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.