Finding the Fourth Proportional to 819,130.51, 1,130,405.35 and 456,577.36
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Solution
The fourth proportional to 819,130.51, 1,130,405.35 and 456,577.36 is: 630,079.67
Step by Step Solution
- Step 1: Write the proportion equation
819,130.51 : 1,130,405.35 = 456,577.36 : x - Step 2: Convert to fraction form
819,130.51/1,130,405.35 = 456,577.36/x - Step 3: Cross multiply
819,130.51x = 1,130,405.35 × 456,577.36 - Step 4: Simplify right side
819,130.51x = 516,117,482,497.96 - Step 5: Solve for x
x = 516,117,482,497.96/819,130.51 - Step 6: Final answer
x = 630,079.67
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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.