Finding the Fourth Proportional to 1,058,507.79, 1,587,522.28 and 489,576.70
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Solution
The fourth proportional to 1,058,507.79, 1,587,522.28 and 489,576.70 is: 734,254.32
Step by Step Solution
- Step 1: Write the proportion equation
1,058,507.79 : 1,587,522.28 = 489,576.70 : x - Step 2: Convert to fraction form
1,058,507.79/1,587,522.28 = 489,576.70/x - Step 3: Cross multiply
1,058,507.79x = 1,587,522.28 × 489,576.70 - Step 4: Simplify right side
1,058,507.79x = 777,213,913,826.13 - Step 5: Solve for x
x = 777,213,913,826.13/1,058,507.79 - Step 6: Final answer
x = 734,254.32
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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.