Finding the Fourth Proportional to 747,228.42, 1,029,970.62 and 505,422.81
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Solution
The fourth proportional to 747,228.42, 1,029,970.62 and 505,422.81 is: 696,668.69
Step by Step Solution
- Step 1: Write the proportion equation
747,228.42 : 1,029,970.62 = 505,422.81 : x - Step 2: Convert to fraction form
747,228.42/1,029,970.62 = 505,422.81/x - Step 3: Cross multiply
747,228.42x = 1,029,970.62 × 505,422.81 - Step 4: Simplify right side
747,228.42x = 520,570,644,977.84 - Step 5: Solve for x
x = 520,570,644,977.84/747,228.42 - Step 6: Final answer
x = 696,668.69
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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.