Finding the Fourth Proportional to 862,742.55, 1,190,637.98 and 475,557.09
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Solution
The fourth proportional to 862,742.55, 1,190,637.98 and 475,557.09 is: 656,298.14
Step by Step Solution
- Step 1: Write the proportion equation
862,742.55 : 1,190,637.98 = 475,557.09 : x - Step 2: Convert to fraction form
862,742.55/1,190,637.98 = 475,557.09/x - Step 3: Cross multiply
862,742.55x = 1,190,637.98 × 475,557.09 - Step 4: Simplify right side
862,742.55x = 566,216,333,012.28 - Step 5: Solve for x
x = 566,216,333,012.28/862,742.55 - Step 6: Final answer
x = 656,298.14
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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.