Finding the Fourth Proportional to 1,281,967.48, 1,769,106.18 and 708,986.44
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Solution
The fourth proportional to 1,281,967.48, 1,769,106.18 and 708,986.44 is: 978,396.34
Step by Step Solution
- Step 1: Write the proportion equation
1,281,967.48 : 1,769,106.18 = 708,986.44 : x - Step 2: Convert to fraction form
1,281,967.48/1,769,106.18 = 708,986.44/x - Step 3: Cross multiply
1,281,967.48x = 1,769,106.18 × 708,986.44 - Step 4: Simplify right side
1,281,967.48x = 1,254,272,292,540.20 - Step 5: Solve for x
x = 1,254,272,292,540.20/1,281,967.48 - Step 6: Final answer
x = 978,396.34
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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.