Finding the Fourth Proportional to 498,591.94, 688,058.70 and 272,237.44
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Solution
The fourth proportional to 498,591.94, 688,058.70 and 272,237.44 is: 375,688.66
Step by Step Solution
- Step 1: Write the proportion equation
498,591.94 : 688,058.70 = 272,237.44 : x - Step 2: Convert to fraction form
498,591.94/688,058.70 = 272,237.44/x - Step 3: Cross multiply
498,591.94x = 688,058.70 × 272,237.44 - Step 4: Simplify right side
498,591.94x = 187,315,337,337.58 - Step 5: Solve for x
x = 187,315,337,337.58/498,591.94 - Step 6: Final answer
x = 375,688.66
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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.