Finding the Fourth Proportional to 689,286.98, 951,242.36 and 383,385.53
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Solution
The fourth proportional to 689,286.98, 951,242.36 and 383,385.53 is: 529,086.67
Step by Step Solution
- Step 1: Write the proportion equation
689,286.98 : 951,242.36 = 383,385.53 : x - Step 2: Convert to fraction form
689,286.98/951,242.36 = 383,385.53/x - Step 3: Cross multiply
689,286.98x = 951,242.36 × 383,385.53 - Step 4: Simplify right side
689,286.98x = 364,692,549,673.91 - Step 5: Solve for x
x = 364,692,549,673.91/689,286.98 - Step 6: Final answer
x = 529,086.67
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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.