Finding the Fourth Proportional to 408,673.76, 563,995.12 and 227,426.08
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Solution
The fourth proportional to 408,673.76, 563,995.12 and 227,426.08 is: 313,862.09
Step by Step Solution
- Step 1: Write the proportion equation
408,673.76 : 563,995.12 = 227,426.08 : x - Step 2: Convert to fraction form
408,673.76/563,995.12 = 227,426.08/x - Step 3: Cross multiply
408,673.76x = 563,995.12 × 227,426.08 - Step 4: Simplify right side
408,673.76x = 128,267,199,280.73 - Step 5: Solve for x
x = 128,267,199,280.73/408,673.76 - Step 6: Final answer
x = 313,862.09
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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.