Finding the Fourth Proportional to 828,873.58, 1,143,847.30 and 489,363.70
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Solution
The fourth proportional to 828,873.58, 1,143,847.30 and 489,363.70 is: 675,322.94
Step by Step Solution
- Step 1: Write the proportion equation
828,873.58 : 1,143,847.30 = 489,363.70 : x - Step 2: Convert to fraction form
828,873.58/1,143,847.30 = 489,363.70/x - Step 3: Cross multiply
828,873.58x = 1,143,847.30 × 489,363.70 - Step 4: Simplify right side
828,873.58x = 559,757,346,963.01 - Step 5: Solve for x
x = 559,757,346,963.01/828,873.58 - Step 6: Final answer
x = 675,322.94
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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.