Finding the Fourth Proportional to 663,987.01, 916,304.97 and 362,187.49
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Solution
The fourth proportional to 663,987.01, 916,304.97 and 362,187.49 is: 499,820.32
Step by Step Solution
- Step 1: Write the proportion equation
663,987.01 : 916,304.97 = 362,187.49 : x - Step 2: Convert to fraction form
663,987.01/916,304.97 = 362,187.49/x - Step 3: Cross multiply
663,987.01x = 916,304.97 × 362,187.49 - Step 4: Simplify right side
663,987.01x = 331,874,197,158.83 - Step 5: Solve for x
x = 331,874,197,158.83/663,987.01 - Step 6: Final answer
x = 499,820.32
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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.