Finding the Fourth Proportional to 905,418.61, 1,249,404.55 and 523,469.99
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Solution
The fourth proportional to 905,418.61, 1,249,404.55 and 523,469.99 is: 722,346.31
Step by Step Solution
- Step 1: Write the proportion equation
905,418.61 : 1,249,404.55 = 523,469.99 : x - Step 2: Convert to fraction form
905,418.61/1,249,404.55 = 523,469.99/x - Step 3: Cross multiply
905,418.61x = 1,249,404.55 × 523,469.99 - Step 4: Simplify right side
905,418.61x = 654,025,789,109.29 - Step 5: Solve for x
x = 654,025,789,109.29/905,418.61 - Step 6: Final answer
x = 722,346.31
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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.