Finding the Fourth Proportional to 688,425.87, 950,164.37 and 439,908.96
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Solution
The fourth proportional to 688,425.87, 950,164.37 and 439,908.96 is: 607,161.70
Step by Step Solution
- Step 1: Write the proportion equation
688,425.87 : 950,164.37 = 439,908.96 : x - Step 2: Convert to fraction form
688,425.87/950,164.37 = 439,908.96/x - Step 3: Cross multiply
688,425.87x = 950,164.37 × 439,908.96 - Step 4: Simplify right side
688,425.87x = 417,985,819,835.76 - Step 5: Solve for x
x = 417,985,819,835.76/688,425.87 - Step 6: Final answer
x = 607,161.70
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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.