Finding the Fourth Proportional to 707,142.19, 975,959.06 and 397,079.58
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Solution
The fourth proportional to 707,142.19, 975,959.06 and 397,079.58 is: 548,027.56
Step by Step Solution
- Step 1: Write the proportion equation
707,142.19 : 975,959.06 = 397,079.58 : x - Step 2: Convert to fraction form
707,142.19/975,959.06 = 397,079.58/x - Step 3: Cross multiply
707,142.19x = 975,959.06 × 397,079.58 - Step 4: Simplify right side
707,142.19x = 387,533,406,776.80 - Step 5: Solve for x
x = 387,533,406,776.80/707,142.19 - Step 6: Final answer
x = 548,027.56
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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.