Finding the Fourth Proportional to 742,174.50, 1,024,202.79 and 402,642.75
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Solution
The fourth proportional to 742,174.50, 1,024,202.79 and 402,642.75 is: 555,648.07
Step by Step Solution
- Step 1: Write the proportion equation
742,174.50 : 1,024,202.79 = 402,642.75 : x - Step 2: Convert to fraction form
742,174.50/1,024,202.79 = 402,642.75/x - Step 3: Cross multiply
742,174.50x = 1,024,202.79 × 402,642.75 - Step 4: Simplify right side
742,174.50x = 412,387,827,923.27 - Step 5: Solve for x
x = 412,387,827,923.27/742,174.50 - Step 6: Final answer
x = 555,648.07
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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.