Finding the Fourth Proportional to 805,615.63, 1,111,778.83 and 461,518.06
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Solution
The fourth proportional to 805,615.63, 1,111,778.83 and 461,518.06 is: 636,911.69
Step by Step Solution
- Step 1: Write the proportion equation
805,615.63 : 1,111,778.83 = 461,518.06 : x - Step 2: Convert to fraction form
805,615.63/1,111,778.83 = 461,518.06/x - Step 3: Cross multiply
805,615.63x = 1,111,778.83 × 461,518.06 - Step 4: Simplify right side
805,615.63x = 513,106,008,770.67 - Step 5: Solve for x
x = 513,106,008,770.67/805,615.63 - Step 6: Final answer
x = 636,911.69
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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.