Finding the Fourth Proportional to 808,401.30, 1,115,542.17 and 445,827.75
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Solution
The fourth proportional to 808,401.30, 1,115,542.17 and 445,827.75 is: 615,213.82
Step by Step Solution
- Step 1: Write the proportion equation
808,401.30 : 1,115,542.17 = 445,827.75 : x - Step 2: Convert to fraction form
808,401.30/1,115,542.17 = 445,827.75/x - Step 3: Cross multiply
808,401.30x = 1,115,542.17 × 445,827.75 - Step 4: Simplify right side
808,401.30x = 497,339,655,681.22 - Step 5: Solve for x
x = 497,339,655,681.22/808,401.30 - Step 6: Final answer
x = 615,213.82
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1.5x scale
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.