Finding the Fourth Proportional to 622,905.80, 934,358.70 and 307,977.80
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Solution
The fourth proportional to 622,905.80, 934,358.70 and 307,977.80 is: 461,966.70
Step by Step Solution
- Step 1: Write the proportion equation
622,905.80 : 934,358.70 = 307,977.80 : x - Step 2: Convert to fraction form
622,905.80/934,358.70 = 307,977.80/x - Step 3: Cross multiply
622,905.80x = 934,358.70 × 307,977.80 - Step 4: Simplify right side
622,905.80x = 287,761,736,836.86 - Step 5: Solve for x
x = 287,761,736,836.86/622,905.80 - Step 6: Final answer
x = 461,966.70
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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.