Finding the Fourth Proportional to 709,489.70, 1,064,234.55 and 511,201.70
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Solution
The fourth proportional to 709,489.70, 1,064,234.55 and 511,201.70 is: 766,802.55
Step by Step Solution
- Step 1: Write the proportion equation
709,489.70 : 1,064,234.55 = 511,201.70 : x - Step 2: Convert to fraction form
709,489.70/1,064,234.55 = 511,201.70/x - Step 3: Cross multiply
709,489.70x = 1,064,234.55 × 511,201.70 - Step 4: Simplify right side
709,489.70x = 544,038,511,158.74 - Step 5: Solve for x
x = 544,038,511,158.74/709,489.70 - Step 6: Final answer
x = 766,802.55
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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.