Finding the Fourth Proportional to 622,228.10, 931,009.35 and 412,276.10
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Solution
The fourth proportional to 622,228.10, 931,009.35 and 412,276.10 is: 616,868.48
Step by Step Solution
- Step 1: Write the proportion equation
622,228.10 : 931,009.35 = 412,276.10 : x - Step 2: Convert to fraction form
622,228.10/931,009.35 = 412,276.10/x - Step 3: Cross multiply
622,228.10x = 931,009.35 × 412,276.10 - Step 4: Simplify right side
622,228.10x = 383,832,903,881.54 - Step 5: Solve for x
x = 383,832,903,881.54/622,228.10 - Step 6: Final answer
x = 616,868.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.