Finding the Fourth Proportional to 458,420.35, 688,083.06 and 344,170.79
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Solution
The fourth proportional to 458,420.35, 688,083.06 and 344,170.79 is: 516,595.94
Step by Step Solution
- Step 1: Write the proportion equation
458,420.35 : 688,083.06 = 344,170.79 : x - Step 2: Convert to fraction form
458,420.35/688,083.06 = 344,170.79/x - Step 3: Cross multiply
458,420.35x = 688,083.06 × 344,170.79 - Step 4: Simplify right side
458,420.35x = 236,818,086,905.40 - Step 5: Solve for x
x = 236,818,086,905.40/458,420.35 - Step 6: Final answer
x = 516,595.94
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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.