Finding the Fourth Proportional to 507,648.20, 700,539.24 and 278,202.68
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Solution
The fourth proportional to 507,648.20, 700,539.24 and 278,202.68 is: 383,911.33
Step by Step Solution
- Step 1: Write the proportion equation
507,648.20 : 700,539.24 = 278,202.68 : x - Step 2: Convert to fraction form
507,648.20/700,539.24 = 278,202.68/x - Step 3: Cross multiply
507,648.20x = 700,539.24 × 278,202.68 - Step 4: Simplify right side
507,648.20x = 194,891,894,013.16 - Step 5: Solve for x
x = 194,891,894,013.16/507,648.20 - Step 6: Final answer
x = 383,911.33
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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.