Finding the Fourth Proportional to 819,395.12, 1,130,769.96 and 456,842
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Solution
The fourth proportional to 819,395.12, 1,130,769.96 and 456,842 is: 630,444.58
Step by Step Solution
- Step 1: Write the proportion equation
819,395.12 : 1,130,769.96 = 456,842 : x - Step 2: Convert to fraction form
819,395.12/1,130,769.96 = 456,842/x - Step 3: Cross multiply
819,395.12x = 1,130,769.96 × 456,842 - Step 4: Simplify right side
819,395.12x = 516,583,210,066.32 - Step 5: Solve for x
x = 516,583,210,066.32/819,395.12 - Step 6: Final answer
x = 630,444.58
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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.