Finding the Fourth Proportional to 558,911.28, 771,295.34 and 313,862.02
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Solution
The fourth proportional to 558,911.28, 771,295.34 and 313,862.02 is: 433,128.34
Step by Step Solution
- Step 1: Write the proportion equation
558,911.28 : 771,295.34 = 313,862.02 : x - Step 2: Convert to fraction form
558,911.28/771,295.34 = 313,862.02/x - Step 3: Cross multiply
558,911.28x = 771,295.34 × 313,862.02 - Step 4: Simplify right side
558,911.28x = 242,080,313,428.99 - Step 5: Solve for x
x = 242,080,313,428.99/558,911.28 - Step 6: Final answer
x = 433,128.34
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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.