Finding the Fourth Proportional to 556,668.81, 768,203.01 and 302,020.02
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Solution
The fourth proportional to 556,668.81, 768,203.01 and 302,020.02 is: 416,787.66
Step by Step Solution
- Step 1: Write the proportion equation
556,668.81 : 768,203.01 = 302,020.02 : x - Step 2: Convert to fraction form
556,668.81/768,203.01 = 302,020.02/x - Step 3: Cross multiply
556,668.81x = 768,203.01 × 302,020.02 - Step 4: Simplify right side
556,668.81x = 232,012,688,444.26 - Step 5: Solve for x
x = 232,012,688,444.26/556,668.81 - Step 6: Final answer
x = 416,787.66
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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.