Finding the Fourth Proportional to 556,991.16, 768,663.64 and 302,358.75
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Solution
The fourth proportional to 556,991.16, 768,663.64 and 302,358.75 is: 417,263.67
Step by Step Solution
- Step 1: Write the proportion equation
556,991.16 : 768,663.64 = 302,358.75 : x - Step 2: Convert to fraction form
556,991.16/768,663.64 = 302,358.75/x - Step 3: Cross multiply
556,991.16x = 768,663.64 × 302,358.75 - Step 4: Simplify right side
556,991.16x = 232,412,177,360.85 - Step 5: Solve for x
x = 232,412,177,360.85/556,991.16 - Step 6: Final answer
x = 417,263.67
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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.