Finding the Fourth Proportional to 817,162.74, 1,127,223.81 and 490,392.18
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Solution
The fourth proportional to 817,162.74, 1,127,223.81 and 490,392.18 is: 676,464.69
Step by Step Solution
- Step 1: Write the proportion equation
817,162.74 : 1,127,223.81 = 490,392.18 : x - Step 2: Convert to fraction form
817,162.74/1,127,223.81 = 490,392.18/x - Step 3: Cross multiply
817,162.74x = 1,127,223.81 × 490,392.18 - Step 4: Simplify right side
817,162.74x = 552,781,741,533.81 - Step 5: Solve for x
x = 552,781,741,533.81/817,162.74 - Step 6: Final answer
x = 676,464.69
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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.