Finding the Fourth Proportional to 479,971.33, 719,998.34 and 124,985.99
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Solution
The fourth proportional to 479,971.33, 719,998.34 and 124,985.99 is: 187,489.75
Step by Step Solution
- Step 1: Write the proportion equation
479,971.33 : 719,998.34 = 124,985.99 : x - Step 2: Convert to fraction form
479,971.33/719,998.34 = 124,985.99/x - Step 3: Cross multiply
479,971.33x = 719,998.34 × 124,985.99 - Step 4: Simplify right side
479,971.33x = 89,989,706,498.32 - Step 5: Solve for x
x = 89,989,706,498.32/479,971.33 - Step 6: Final answer
x = 187,489.75
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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.