Finding the Fourth Proportional to 542,775.81, 749,120.28 and 301,136.19
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Solution
The fourth proportional to 542,775.81, 749,120.28 and 301,136.19 is: 415,617.69
Step by Step Solution
- Step 1: Write the proportion equation
542,775.81 : 749,120.28 = 301,136.19 : x - Step 2: Convert to fraction form
542,775.81/749,120.28 = 301,136.19/x - Step 3: Cross multiply
542,775.81x = 749,120.28 × 301,136.19 - Step 4: Simplify right side
542,775.81x = 225,587,226,970.93 - Step 5: Solve for x
x = 225,587,226,970.93/542,775.81 - Step 6: Final answer
x = 415,617.69
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1.5x scale
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.