Finding the Fourth Proportional to 1,560,370.05, 2,340,555.08 and 438,439.05
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Solution
The fourth proportional to 1,560,370.05, 2,340,555.08 and 438,439.05 is: 657,658.58
Step by Step Solution
- Step 1: Write the proportion equation
1,560,370.05 : 2,340,555.08 = 438,439.05 : x - Step 2: Convert to fraction form
1,560,370.05/2,340,555.08 = 438,439.05/x - Step 3: Cross multiply
1,560,370.05x = 2,340,555.08 × 438,439.05 - Step 4: Simplify right side
1,560,370.05x = 1,026,190,743,555.68 - Step 5: Solve for x
x = 1,026,190,743,555.68/1,560,370.05 - Step 6: Final answer
x = 657,658.58
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Double scale
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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.