Finding the Fourth Proportional to 808,312.92, 1,115,535.42 and 445,769.88
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Solution
The fourth proportional to 808,312.92, 1,115,535.42 and 445,769.88 is: 615,197.50
Step by Step Solution
- Step 1: Write the proportion equation
808,312.92 : 1,115,535.42 = 445,769.88 : x - Step 2: Convert to fraction form
808,312.92/1,115,535.42 = 445,769.88/x - Step 3: Cross multiply
808,312.92x = 1,115,535.42 × 445,769.88 - Step 4: Simplify right side
808,312.92x = 497,272,090,309.15 - Step 5: Solve for x
x = 497,272,090,309.15/808,312.92 - Step 6: Final answer
x = 615,197.50
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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.