Finding the Fourth Proportional to 539,548.74, 809,789.76 and 207,358.02
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Solution
The fourth proportional to 539,548.74, 809,789.76 and 207,358.02 is: 311,216.37
Step by Step Solution
- Step 1: Write the proportion equation
539,548.74 : 809,789.76 = 207,358.02 : x - Step 2: Convert to fraction form
539,548.74/809,789.76 = 207,358.02/x - Step 3: Cross multiply
539,548.74x = 809,789.76 × 207,358.02 - Step 4: Simplify right side
539,548.74x = 167,916,401,249.88 - Step 5: Solve for x
x = 167,916,401,249.88/539,548.74 - Step 6: Final answer
x = 311,216.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.