Finding the Fourth Proportional to 612,661.10, 845,407.58 and 340,685.06
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Solution
The fourth proportional to 612,661.10, 845,407.58 and 340,685.06 is: 470,109.38
Step by Step Solution
- Step 1: Write the proportion equation
612,661.10 : 845,407.58 = 340,685.06 : x - Step 2: Convert to fraction form
612,661.10/845,407.58 = 340,685.06/x - Step 3: Cross multiply
612,661.10x = 845,407.58 × 340,685.06 - Step 4: Simplify right side
612,661.10x = 288,017,726,186.29 - Step 5: Solve for x
x = 288,017,726,186.29/612,661.10 - Step 6: Final answer
x = 470,109.38
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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.