Finding the Fourth Proportional to 749,109.21, 1,122,480.40 and 608,178.93
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Solution
The fourth proportional to 749,109.21, 1,122,480.40 and 608,178.93 is: 911,307.62
Step by Step Solution
- Step 1: Write the proportion equation
749,109.21 : 1,122,480.40 = 608,178.93 : x - Step 2: Convert to fraction form
749,109.21/1,122,480.40 = 608,178.93/x - Step 3: Cross multiply
749,109.21x = 1,122,480.40 × 608,178.93 - Step 4: Simplify right side
749,109.21x = 682,668,928,617.97 - Step 5: Solve for x
x = 682,668,928,617.97/749,109.21 - Step 6: Final answer
x = 911,307.62
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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.