Finding the Fourth Proportional to 657,987.42, 987,346.08 and 321,030.84
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Solution
The fourth proportional to 657,987.42, 987,346.08 and 321,030.84 is: 481,724.32
Step by Step Solution
- Step 1: Write the proportion equation
657,987.42 : 987,346.08 = 321,030.84 : x - Step 2: Convert to fraction form
657,987.42/987,346.08 = 321,030.84/x - Step 3: Cross multiply
657,987.42x = 987,346.08 × 321,030.84 - Step 4: Simplify right side
657,987.42x = 316,968,541,433.11 - Step 5: Solve for x
x = 316,968,541,433.11/657,987.42 - Step 6: Final answer
x = 481,724.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.