Finding the Fourth Proportional to 615,653.40, 849,536.97 and 357,479.88
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Solution
The fourth proportional to 615,653.40, 849,536.97 and 357,479.88 is: 493,284.65
Step by Step Solution
- Step 1: Write the proportion equation
615,653.40 : 849,536.97 = 357,479.88 : x - Step 2: Convert to fraction form
615,653.40/849,536.97 = 357,479.88/x - Step 3: Cross multiply
615,653.40x = 849,536.97 × 357,479.88 - Step 4: Simplify right side
615,653.40x = 303,692,374,091.16 - Step 5: Solve for x
x = 303,692,374,091.16/615,653.40 - Step 6: Final answer
x = 493,284.65
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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.