Finding the Fourth Proportional to 817,325.94, 1,127,881.30 and 449,768.74
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Solution
The fourth proportional to 817,325.94, 1,127,881.30 and 449,768.74 is: 620,665.18
Step by Step Solution
- Step 1: Write the proportion equation
817,325.94 : 1,127,881.30 = 449,768.74 : x - Step 2: Convert to fraction form
817,325.94/1,127,881.30 = 449,768.74/x - Step 3: Cross multiply
817,325.94x = 1,127,881.30 × 449,768.74 - Step 4: Simplify right side
817,325.94x = 507,285,751,170.56 - Step 5: Solve for x
x = 507,285,751,170.56/817,325.94 - Step 6: Final answer
x = 620,665.18
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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.