Finding the Fourth Proportional to 818,267.12, 1,129,199.52 and 455,683.04
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Solution
The fourth proportional to 818,267.12, 1,129,199.52 and 455,683.04 is: 628,837.52
Step by Step Solution
- Step 1: Write the proportion equation
818,267.12 : 1,129,199.52 = 455,683.04 : x - Step 2: Convert to fraction form
818,267.12/1,129,199.52 = 455,683.04/x - Step 3: Cross multiply
818,267.12x = 1,129,199.52 × 455,683.04 - Step 4: Simplify right side
818,267.12x = 514,557,070,040.14 - Step 5: Solve for x
x = 514,557,070,040.14/818,267.12 - Step 6: Final answer
x = 628,837.52
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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.