Finding the Fourth Proportional to 1,020,176.68, 1,408,140.42 and 680,644.36
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Solution
The fourth proportional to 1,020,176.68, 1,408,140.42 and 680,644.36 is: 939,487.10
Step by Step Solution
- Step 1: Write the proportion equation
1,020,176.68 : 1,408,140.42 = 680,644.36 : x - Step 2: Convert to fraction form
1,020,176.68/1,408,140.42 = 680,644.36/x - Step 3: Cross multiply
1,020,176.68x = 1,408,140.42 × 680,644.36 - Step 4: Simplify right side
1,020,176.68x = 958,442,834,961.03 - Step 5: Solve for x
x = 958,442,834,961.03/1,020,176.68 - Step 6: Final answer
x = 939,487.10
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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.