Finding the Fourth Proportional to 497,918.14, 687,123.84 and 283,058.20
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Solution
The fourth proportional to 497,918.14, 687,123.84 and 283,058.20 is: 390,618.50
Step by Step Solution
- Step 1: Write the proportion equation
497,918.14 : 687,123.84 = 283,058.20 : x - Step 2: Convert to fraction form
497,918.14/687,123.84 = 283,058.20/x - Step 3: Cross multiply
497,918.14x = 687,123.84 × 283,058.20 - Step 4: Simplify right side
497,918.14x = 194,496,037,327.49 - Step 5: Solve for x
x = 194,496,037,327.49/497,918.14 - Step 6: Final answer
x = 390,618.50
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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.