Finding the Fourth Proportional to 556,776.99, 768,354.30 and 302,128.18
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Solution
The fourth proportional to 556,776.99, 768,354.30 and 302,128.18 is: 416,938.00
Step by Step Solution
- Step 1: Write the proportion equation
556,776.99 : 768,354.30 = 302,128.18 : x - Step 2: Convert to fraction form
556,776.99/768,354.30 = 302,128.18/x - Step 3: Cross multiply
556,776.99x = 768,354.30 × 302,128.18 - Step 4: Simplify right side
556,776.99x = 232,141,484,333.29 - Step 5: Solve for x
x = 232,141,484,333.29/556,776.99 - Step 6: Final answer
x = 416,938.00
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1.5x scale
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.