Finding the Fourth Proportional to 539,829.12, 744,988.14 and 310,460.88
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Solution
The fourth proportional to 539,829.12, 744,988.14 and 310,460.88 is: 428,449.79
Step by Step Solution
- Step 1: Write the proportion equation
539,829.12 : 744,988.14 = 310,460.88 : x - Step 2: Convert to fraction form
539,829.12/744,988.14 = 310,460.88/x - Step 3: Cross multiply
539,829.12x = 744,988.14 × 310,460.88 - Step 4: Simplify right side
539,829.12x = 231,289,673,533.96 - Step 5: Solve for x
x = 231,289,673,533.96/539,829.12 - Step 6: Final answer
x = 428,449.79
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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.