Finding the Fourth Proportional to 904,919.74, 1,248,215.39 and 555,907.42
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Solution
The fourth proportional to 904,919.74, 1,248,215.39 and 555,907.42 is: 766,799.71
Step by Step Solution
- Step 1: Write the proportion equation
904,919.74 : 1,248,215.39 = 555,907.42 : x - Step 2: Convert to fraction form
904,919.74/1,248,215.39 = 555,907.42/x - Step 3: Cross multiply
904,919.74x = 1,248,215.39 × 555,907.42 - Step 4: Simplify right side
904,919.74x = 693,892,197,059.19 - Step 5: Solve for x
x = 693,892,197,059.19/904,919.74 - Step 6: Final answer
x = 766,799.71
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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.