Finding the Fourth Proportional to 520,867.84, 781,347.84 and 284,108.80
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Solution
The fourth proportional to 520,867.84, 781,347.84 and 284,108.80 is: 426,188.33
Step by Step Solution
- Step 1: Write the proportion equation
520,867.84 : 781,347.84 = 284,108.80 : x - Step 2: Convert to fraction form
520,867.84/781,347.84 = 284,108.80/x - Step 3: Cross multiply
520,867.84x = 781,347.84 × 284,108.80 - Step 4: Simplify right side
520,867.84x = 221,987,797,204.99 - Step 5: Solve for x
x = 221,987,797,204.99/520,867.84 - Step 6: Final answer
x = 426,188.33
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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.