Finding the Fourth Proportional to 817,316.91, 1,223,613.41 and 518,135.31
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Solution
The fourth proportional to 817,316.91, 1,223,613.41 and 518,135.31 is: 775,705.61
Step by Step Solution
- Step 1: Write the proportion equation
817,316.91 : 1,223,613.41 = 518,135.31 : x - Step 2: Convert to fraction form
817,316.91/1,223,613.41 = 518,135.31/x - Step 3: Cross multiply
817,316.91x = 1,223,613.41 × 518,135.31 - Step 4: Simplify right side
817,316.91x = 633,997,310,919.83 - Step 5: Solve for x
x = 633,997,310,919.83/817,316.91 - Step 6: Final answer
x = 775,705.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.