Finding the Fourth Proportional to 740,648.58, 1,022,094.09 and 401,118.18
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Solution
The fourth proportional to 740,648.58, 1,022,094.09 and 401,118.18 is: 553,542.57
Step by Step Solution
- Step 1: Write the proportion equation
740,648.58 : 1,022,094.09 = 401,118.18 : x - Step 2: Convert to fraction form
740,648.58/1,022,094.09 = 401,118.18/x - Step 3: Cross multiply
740,648.58x = 1,022,094.09 × 401,118.18 - Step 4: Simplify right side
740,648.58x = 409,980,521,169.56 - Step 5: Solve for x
x = 409,980,521,169.56/740,648.58 - Step 6: Final answer
x = 553,542.57
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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.