Finding the Fourth Proportional to 409,278.06, 564,820.74 and 227,989.94
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Solution
The fourth proportional to 409,278.06, 564,820.74 and 227,989.94 is: 314,635.59
Step by Step Solution
- Step 1: Write the proportion equation
409,278.06 : 564,820.74 = 227,989.94 : x - Step 2: Convert to fraction form
409,278.06/564,820.74 = 227,989.94/x - Step 3: Cross multiply
409,278.06x = 564,820.74 × 227,989.94 - Step 4: Simplify right side
409,278.06x = 128,773,445,347.36 - Step 5: Solve for x
x = 128,773,445,347.36/409,278.06 - Step 6: Final answer
x = 314,635.59
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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.