Finding the Fourth Proportional to 906,779.70, 1,360,169.55 and 409,115.70
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Solution
The fourth proportional to 906,779.70, 1,360,169.55 and 409,115.70 is: 613,673.55
Step by Step Solution
- Step 1: Write the proportion equation
906,779.70 : 1,360,169.55 = 409,115.70 : x - Step 2: Convert to fraction form
906,779.70/1,360,169.55 = 409,115.70/x - Step 3: Cross multiply
906,779.70x = 1,360,169.55 × 409,115.70 - Step 4: Simplify right side
906,779.70x = 556,466,717,566.94 - Step 5: Solve for x
x = 556,466,717,566.94/906,779.70 - Step 6: Final answer
x = 613,673.55
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1.5x scale
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.