Finding the Fourth Proportional to 1,285,090.24, 1,773,470.28 and 775,693.12
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Solution
The fourth proportional to 1,285,090.24, 1,773,470.28 and 775,693.12 is: 1,070,484.12
Step by Step Solution
- Step 1: Write the proportion equation
1,285,090.24 : 1,773,470.28 = 775,693.12 : x - Step 2: Convert to fraction form
1,285,090.24/1,773,470.28 = 775,693.12/x - Step 3: Cross multiply
1,285,090.24x = 1,773,470.28 × 775,693.12 - Step 4: Simplify right side
1,285,090.24x = 1,375,668,694,720.47 - Step 5: Solve for x
x = 1,375,668,694,720.47/1,285,090.24 - Step 6: Final answer
x = 1,070,484.12
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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.