Finding the Fourth Proportional to 1,372,132.72, 2,058,398.34 and 425,579.68
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Solution
The fourth proportional to 1,372,132.72, 2,058,398.34 and 425,579.68 is: 638,431.32
Step by Step Solution
- Step 1: Write the proportion equation
1,372,132.72 : 2,058,398.34 = 425,579.68 : x - Step 2: Convert to fraction form
1,372,132.72/2,058,398.34 = 425,579.68/x - Step 3: Cross multiply
1,372,132.72x = 2,058,398.34 × 425,579.68 - Step 4: Simplify right side
1,372,132.72x = 876,012,506,849.73 - Step 5: Solve for x
x = 876,012,506,849.73/1,372,132.72 - Step 6: Final answer
x = 638,431.32
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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.